Loading density is perfect for magnums, nicely filling the case at maximum charges . US869 is a dense propellant that allows the shooter to use enough powder to create maximum velocities in cartridges such as the 7mm . IMR 8133 IMR Enduron 8133 is the slowest burn rate in the Enduron family. Please help us to improve and report any suggestions via our contact form. JavaScript is disabled. Buy IMR 7977 Powder | 1,8lbs - Don't Miss Buy Now! I used a 26" bbl , my rifle has a 30" bbl . This website uses cookies to ensure the best experience possible. Went to Cabela's Saturday and scored 100 rounds of Hornady 285 grn BTHP. This testing was with Hornady 285 ELD-M with Alliant Reloder 26. To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser. Warning! IMR Enduron 7977 is a slower burn rate in the Enduron family. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum . For this reason, the IMR brand powders truly are Legendary products. IMR Enduron 7977. JavaScript is disabled. H1000 is supposed to be extremely close to IMR 7977. It yields outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and a host of others. IMR Enduron 7977 is a slower burn rate in the Enduron family. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. We use CCI. Picked up the 7977 for my 280 ack and 300 wm. With 7977 I discern no difference between CCI 250 or Fed 215 . Warning; Manufacturer Loading Data; Cartrige Powder Recommendations; . Loading density is ideal for magnums, filling the case nicely at . JavaScript seems to be disabled in your browser. We place limited powder inventory for sale on a regular basis on our website. Find A Dealer. Inkognito. Yields outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and a host of others. It seemed to me Hodgdon was more aggressive with the max load when comparing to other loads and in my case is sure was. .338 Lapua Magnum (using Sierra bullets) - Load Data N550 high energy powder - Vihtavuori During this time of overwhelming demand, our team is doing everything possible to produce more bullets and ammo than ever before. More what I was meaning is I think 97 grains of 7977 with 250 grain bullets may be dangerous in bullets other than the 250gr hornady soft point. I too am interested. I shot five rounds and at 100 yards and I got a group that was less than 3/4 of an inch. Accurate .338 Lapua load? | Sniper & Sharpshooter Forums I recently bought one each of these powders to try in my 300 win mag and my 6.5 x 47 lapua. Jim, I understand this is an old thread, but want to reply anyway. it takes all the guess work out of the "what if " questions we reloaders have . Share your experiences with other customers. IMR - Legendary Powders # Imr 7977 Load Data For 338 Lapua - Imr 7977 338 Lapua Magnum; 338 Remington Ultra Magnum; 338 Winchester Magnum; 338-06 A-Square; 338-378 Weatherby Magnum; 340 Weatherby Magnum; 35 Whelen; 350 Remington Magnum; 375 Flanged; 375 H&H Magnum; 375 Remington Ultra Magnum; 375 Weatherby Magnum; 378 Weatherby Magnum; 40 S&W; 404 Jeffery; 416 Remington Magnum; 416 Rigby; 45 Auto (ACP) 450 Rigby . Improved Military Rifle IMR 7977. Sign up with your email address to receive news and updates. It yields outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and a host of others. Used same loads as 4350 and RL17. I have not ran 8133 in 338 yet. h4895 Reduced Rifle Load. Ammunition. I hope this shows how valuable quickload can be . 338 Lapua - Hornady 285 ELD-M and Reloder 26 Load Test You are using an out of date browser. Two are 338 LM. 123 gr. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb . I wouldn't say it's a better alternative - it's on the slow side. Consistent performance . Hodgdon Powder Company operates following Biblical principles to honor God. holds 78.6 grains of water, which means the Nosler has a 12 percent increase in case volume while maintaining the same 3.340-inch overall cartridge length. Cartridge Comparisons. so I checked it out a bit more. Vihtavuori's N550 rifle powder was originally developed for .30-06 Springfield and .308 Win. It is recommended for the .25-06, 6.5mm-284, 7mm Rem. It may not display this or other websites correctly. Reloading- What pressure signs do you stop at. You must log in or register to reply here. RCBS #48. The maxorder quantity of any powder SKU is, https://shop.hodgdon.com/sites/www/files/2022-04/2022-IMR%20Endurons%20SDS.pdf, https://shop.hodgdon.com/sites/www/files/2020-08/sell-sheet-imr-enduron-final.p. You are using an out of date browser. IMR 7977 in 338 Lapua | Shooters' Forum 7977 uses almost exactly the same data as H1000 with very similar speeds. . Reactions: Evlshnngns. IMR 7977 90.0 MAX. IMR 7977 is comparable to Hodgdon H1000. If you are the site owner (or you manage this site), please whitelist your IP or if you think this block is an error please open a support ticket and make sure to include the block details (displayed in the box below), so we can assist you in troubleshooting the issue. Loading Bench: 6.5x55 mm Swedish - An Official Journal Of The NRA The COAL stated is this table is according to the SAAMI specification. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to I've had quickload since 2009 , I think . Resources. Load Specifics. . For a better experience, please enable JavaScript in your browser before proceeding. I am finally starting to play around with different loads for my .338 Lapua. 14 rds from my 338 Win Mag Rem 700 XCR. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. RL33 is working great in my 338 RUM with the 300 EH. Thanks, but I prefer shooting .300 Bergers. IMR 7977 powder is a magnum propellant with the slowest burn rate of the Enduron powders. The 6.5 mm Creedmoor (top.) The maxorder quantity of any powder SKU is. Supersubes Heathen. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. (Please refer to out " Reloading Tips " for proper measurement techniques) If possible, we recommend that you determine the COAL of your rifle, and load your bullets at 1mm short of the lands. Hornady ELD-M; Primer: 215M; Brass: Lapua; Powders: H1000 & IMR 7977; I have messed with seating depth loading all the way up into the lands and then backing my bullet out all the way to thirty . US 869 is a 50 BMG propellant that offers significant advantages in many magnum rifle applications! These loads were shot by Brian Pearce of Wolfe Publishing Co. Every week of WW II, as many munitions were used as in all of WW I. The Hornady 143-grain ELD-X, Nosler 142-grain ABLR, Berger Classic Hunter, and Berger Hybrid Target bullets all . New customer? Sign up to get updates and access to exclusive promotions. We place limited powder inventory for sale on a regular basis on our website. I paid about $160 for it originally , and have bought many updates over the years . The IMR brand was first introduced under DuPont in the 1930s. if anyone is interested i did the same process with the IMR 4451 powder in my 6.5x47 lapua for which there is no published data for this powder. Reloading for the 338 Lapua Magnum | The Hunting Gear Guy Vihtavuori N550 - powerful loads for hunting. Imr 7977 Load Data For 338 Lapua If you are looking for Seeley Imr 7977 Load Data For 338 Lapua Yes you see this. either expressed or implied is assumed for the use of this data. The IMR series of powder is trusted by reloaders all over the world and is suitable for a wide range of reloading applications. to 90 gr. IMR 7977 in 338 Lapua | Long Range Hunting Forum 6.5 PRC Load Data - Shooting Times The COAL is measured from the base of the case to the tip of the bullet. 338 lapua 250 grain BTHP. Cedar Park, Texas. Thank goodness we do not have a .338 Lapua, as Jim's shoulder would not handle the punishment! This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. Joined Jan 8, 2012 Messages 7 Sierra SBT COAL: 3.575 inches; Sierra HPBT MatchKing COAL: 3.680 inches. I understand this is an old thread, but want to reply anyway. In doing so, we deal with integrity and honesty . Hope it helps. I did see Hodgdons data, but unfortunately they only list the hornady SP bullet. I love it! 2796 88.0 * 2712 86.0 2628 H1000 93.0 MAX. Works great in a 7mm Remington Magnum cartridge out of a Winchester Stainless Model 70 using 136 gn Hammer (sledge hammer) bullets. I love Hodgdon, but I think 97gr is dangerous in most 250 class bullets. We continue to prioritize our shipments to our traditional sales channels to maximize powder availability at retailers. imr 7977 load data 338 lapua - masar.group Guide to IMR's Enduron Powders What You Need to Know these would be considered max powder charges . It is slower burning than expected. PDF 338 Lapua Mag - 265 grain 338 Cal. (.338) - Nosler Magnum, .300 Win. here is the powder chart . Be Alert: Publisher cannot be responsible for errors in published load data. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. have used this powder in a .270 wsm useing the Hornady 150 grain SSTwith the exact load as HODGDON recomends and found it accurate and takeing large red deer out to 500 meters with ease. . For more information, go towww.P65Warnings.ca.gov. Magnum, .300 Wby. US 869 - Hodgdon I'm using RL33 with 300 gr berger hunting bullets . snoopy happy dance emoji 8959 norma pl west hollywood ca 90069 8959 norma pl west hollywood ca 90069 IMR Enduron 7977 is a slower burn rate in the Enduron family. Imr 7977. Blog. 160 gr. Jun 3, 2010 202 11 Las Vegas . Loading density is perfect for magnums, contributing to superb uniformity. Posted by marcus john tweddell on Mar 3rd 2021. have used this powder in a .270 wsm useing the Hornady 150 grain SSTwith the exact load as HODGDON recomends and found it accurate and takeing large red deer out to 500 meters with ease. IMR 4166 possesses the fastest burn rate in the Enduron lineup. Loading density is perfect for magnums, contributing to superb uniformity. Imr 7977 | Long Range Only Charge weights are nearly identical to H1000, which i understand 7977 is supposed to be similar too. Find load data for IMR 4064 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Short Magnum, 308 Winchester, 338 Winchester Magnum, and the list goes on and on. I dont have any velocity data, but I did run a couple loads with . More about this powder: IMR Enduron 7977 is a slower burn rate in the Enduron family. The slowest burn rate Enduron Technology extruded powder and a true magnum cartridge propellant. Access from your Country was disabled by the administrator. Minuteman. The IMR brand was created under the DuPont Corporation. I was wondering if the latest version of Quick load could work up recommended loads for the 338 Lapua using the Cutting Edge 252 gr. Reply. Shooter's Reference Load Data for .338 Winchester Magnum We appreciate your patience and continued support! 338 Lapua Mag - 265 grain Version 9.0 24" H-S Prec. Experimental IMR Enduron Powder Loads - Discussion & Results These loads were shot by Brian Pearce of Wolfe Publishing Co. Ive been working on trying to get my 338 to shoot better. Ac c uB ond Lo n g R an g e 0 .7 3 2 here is the Data I found of Hodgdon's site. Improved Military Rifle IMR 7977. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. VihtaVuori N150. Hey guys, does anybody have any IMR 7977- 338LM data? I tried 250gr Bergers and 7977 in a pressure test. One of the guys may want it. DuPont founded the company. US 869. I've had good success with 7977 in the 338 Lapua with 300g Bergers. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Bullets. JavaScript is disabled. March 27, 2016 Gavin Reloading Blog, Uncategorized 308 Winchester, 338 Lapua, AR-10, AR-15, Gunpowder, IMR 4166, IMR 4451, IMR 4955, IMR 7977, IMR Enduron Ultimate Reloader Moves to the Country Anyone that lives in the city can tell you just how difficult, limiting, and expensive shooting can be when you don't have access to the country. Scenar-L has truly earned its . Find load data for IMR 7977 Enduron propellant by clicking the button "Loads for this Powder". online shopping has now taking into account a long way; it has untouched the quirk consumers and entrepreneurs reach issue today. 1. I hit Harold bolt lift around 93gr. I tried H1000, IMR7977, and 4891 with 4 different bullet combos. Subscribe to the free newsletter and do not miss any news or promotions. Bottom line, I like it so far. I sure wouldn't want to do without it . First used in battle in 1805 by United States naval forces against pirates off the coast of Algiers, DuPont supplied more than 80% of Allied Forces powder needs in World War I. imr 7977 for sale | Buy Cheap| Reviews| Reloading Data| Burn Rate For a better experience, please enable JavaScript in your browser before proceeding. It hasn't wiped out the idea of shopping in a being store, but it gave the consumers an swap means to shop and a better announce that . Bullet Weight: ALL. New Products. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. Ramshot Hunter. I have had good luck with 4451 in 6mm Rem with 90 gr BT and 7mm Rem Mag with 150 BT. BARREL Twist 1-10" GRS. When we are sold out, we are sold out. Need 338 Lapua Quick load help. - 24hourcampfire For the best experience on our site, be sure to turn on Javascript in your browser. It may not display this or other websites correctly. I'm using H100 with 300 gr and it's very accurate. IMR is an acronym for Improved Military Rifle. 26.0 inch = 660.4 mm Predicted Data for Indicated Charges of the Following Powders. IMR 7977 - Reloading Unlimited You are using an out of date browser. 56.0 grns behind a 100gr NBT got me 0.5" at 100 with 3156 f.p.s. Most of my guns will not shoot a tight group without some. Let me know if you want to sell the barrel. IMR 7977. IMR 7977 Enduron . I got a buddy in FL that's about due for a barrel change. N. ntg . When will it be back in stock? Really consistently accurate results. Mark . This is a true magnum propellant yielding outstanding performance in .300 Winchester Magnum, 7mm Remington Magnum and .338 Lapua Magnum. Very fast flat shooting powder. Guide to IMR Enduron Powders: 4166, 4451, 4955, 7977, 8933 Retumbo was 94g at 2654fps. Shooter's Reference Load Data for .338 Lapua Magnum Regarding primer choice for the .300 Norma Magnum, you'll most definitely want a good large rifle magnum primer to ignite that powder column, especially since powder charges can exceed 90 grains. I get 2800 fps with a 300g Berger in my 30 inch barrel. . Hogdon's 2015 annual load manual has data and some good articles on them. 26. Hey guys, does anybody have any IMR 7977- 338LM data? . VAT (where applicable), shipping costs and possible delivery charges. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. .300 win mag imr 7977, 168 grain berger 7mm rem mag with 7977 powder, 26 nosler with imr 7977, 280 ackley improved with imr 7977 data and 168 berger . Comprehensive load data for IMR 7977 Enduron reloading powder und technical specifications for this propellant. Need Load Data for 338 Lapua Mag - Texas Gun Talk To put that in perspective, the 338 Win. It performs admirably in cartridges such as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua, and a variety of others. Im hoping to try 250gr berger EH, 285eld-m, and 285 BTHP. 338 LAPUA MAGNUM | Reloading Data for handloading ammunition This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. Improved Military Rifle IMR 7828 SSC. It may not display this or other websites correctly. I had no luck with my factory RPR barrel. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. imr 7977 for sale IMR powder production dates back more than 200 years, when E.I. Full Member. 7977 IMR Enduron Powder; 4166 . The length of the neck is just about one bullet diameter at 0.329 inch. Tips For Reloading The .300 Norma Magnum - Gun Digest Predicted Data for Indicated Charges of the Following Powders. I was amazed at the velocity witch was more that I was supposed to get with 71 grains. IMR Enduron Powders - CHUCKHAWKS.COM Works great in a 7mm Remington Magnum cartridge out of a Winchester Stainless Model 70 using 136 gn Hammer (sledge hammer) bullets. imr 7977 load data 338 lapuathe renaissance apartments chicago. Matching Maximum Pressure: 60916 psi, or 420 MPa . With 285 ELDs I hit hard lift at 91 grain. IMR 7977 Enduron Powder Load Data - xxl-reloading.com Improved Military Rifle IMR 8133. Gun: Savage Model 110 BA; Barrel Length: 26 inches; 1-in-9-inch twist; Case: Lapua; Primer: Federal 215 Large Rifle Magnum; Bullet Diameter: .338 inch; Maximum COAL: 3.681 inches; Maximum Case Length: 2.724 inches; Trim to Length: 2.714 inches. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb . For the 338 Lapua, the 300 grainers are too heavy and IMR 8133 is too slow. Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. IMR 7977 for the 300 win mag . hope this helps . WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. 56.0 grns behind a 100gr NBT got me 0.5" at 100 with 3156 f.p.s. IMR Enduron 7977 | Hodgdon No reviews found. Soft Point: . To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. In addition to the 6.5x55 mm Swedish, the Sauer 404 is chambered in 15 other . For example, berger lists 90gr of H1000 as the max charge. This demand lead to an incredible 2.5 billion pounds of smokeless propellants being manufactured by DuPont for Allied Forces in World War II. Bullet: Nosler BST 200 gr: Bullet weight: 13 g / 200 gr: B.C: 0.414: C.O.L: 92.0 mm / 3.622 # 33200: Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: . It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 . I'm hoping to try 250gr berger EH, 285eld-m, and 285 BTHP. Loading density is perfect for magnums, contributing to superb uniformity. * All prices incl. I have H1000 which I have tried with no luck. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing . IMR now offers four Enduron powders that cover a broad range of burn rates. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. it should give the highest velocity without showing signs of over pressure . I use 98 grains in a 31" 300 RUM. For the best experience on our site, be sure to turn on Javascript in your browser. The .300 Norma case has a capacity of 103.0 grains of water, so powder charges will approach 90 grains or more, depending on the bullet weight. 338 Lapua Magnum Reloading Data | Berger Bullets. is essentially the 6.5 mm Swede (btm.) The slowest burn rate Enduron Technology extruded powder is IMR 7977, and is a true magnum cartridge propellant. IMR 7828SSC 93.8 3201 104.3C 3583 *Magnum 104.6 3336 116.2C 3670 338 Lapua Magnum Suggested Bullet Use 185-grain TTSX BT Sectional Density .231 Ballistic Coefficient .432 C.O.A.L 3.600" uggested ullet se Suggested Bullet Use Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. Mag. Improved Military Rifle IMR 8208 XBR. Has any one tried this powder with any luck? if you're serious about reloading and shooting I really recommend it . Reviews can only be submitted while being logged in. Consistent performance . Ok, but just to give you some perspective You must log in or register to reply here. Lee #25. It may not display this or other websites correctly. Just for comparison's sake, the 338 Federal will send a 215 grn bullet out at 2500 fps, the 338-06 . IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. . Just couldnt get under 0.8 moa. Loading density is perfect for the very large magnums, including the 6.5mm and 7mm magnums. IMR reloading data - Balistix Bullets Loading density is perfect for magnums, contributing to superb uniformity. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. Any gunpowder required by handloaders can be sourced through these brands. Keying in on the PRC's role as a big-game cartridge, I concentrated on loads with high-BC bullets. In this video we discuss reloading the Savage 110 BA stealth in 338 Lapua Magnum. The IMR Enduron Powder load data published by this website is intended discussion . Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Pushing 163gr SCBT 3611 fps (avg.) Scenar-L - Lapua 338 Lapua Reloading Struggles | Rokslide Forum Have been looking at the 7977 for my 270 with the Matrix bullets. IMR 4831 92.4 72.7 4.71 2519 100.0 60916 8941 1.444 !DANGEROUS LOAD-DO NOT USE! @3000 fps. A true magnum spherical rifle powder, it is superb with heavy bullets in big, overbore rifle cartridges. With the bullets touching the lands 69 grains gave me an average velocity of 3140 ft/sec.. 338 lapua 250 grain BTHP. Very fast flat shooting powder. I worked up a load for my Winchester Model 70 in 270WSM with a 24 inch Bartlein barrel, using 150 Berger VLD's in RP case, 215 primers and 68-70 grains of 7977. RCBS #14. But I agree with the above post. I've been working on trying to get my 338 to shoot better. calibers in the late 90's. The N550 is an ideal fit for many of the 30 caliber magnums with lighter bullets, but also useful across a wide range of bore sizes in various shooting disciplines. IMPORTANT: Please view the special notes by clicking here. .338 Lapua Magnum - Published Manufacturer Loading Data. with a shortened case body. The components I currently have are VihtVuori N560 Powder and Sierra 250 Game king & Sierra 300 Match King bullets. Reloading data for 338 Lapua Magnum. I searched for RL 33 yesterday and they didn't have any, nor Retumbo. Hogdon's 2015 annual load manual has data and some good articles on them. We offer a wide variety of cases and bullets for hunting, sport shooting, target and tactical purposes. Address: xxl-reloading.com, Gartenweg 9, 83661 Lenggries, Germany. Lee #5. . I picked up some IMR 7977 to try some different bullet/powder combos but Im not finding much data. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. I tried 7977 and H1000 without much luck, finally settled on Retumbo with the 285gr ELD-Ms. For powder I like IMR 7828 and scored 2 lbs of the IRM7828scc. Gun: Savage Model 110 BA; Barrel Length: 26 inches; 1-in-9-inch twist; Case: Lapua; Primer: Federal 215 Large Rifle Magnum; Bullet Diameter: .338 inch; Maximum COAL: 3.681 inches; Maximum Case Length: 2.724 inches; Trim to Length: 2.714 inches. We continue to prioritize our shipments to our traditional sales channels to maximize powder availability at retailers. In the Hodgdon manual it has the best velocity in a 338 Lapua of any of the powders they tested at 93g at 2688 fps. Calibers range from .22 to 9.362, and our most well-known bullets are Scenar and Scenar-L match projectiles and Naturalis and Mega hunting bullets. MTH ( standard, not single feed version. Ill be going to 338 LM AI and shoot 300gr Bergers. We use cookies to make your experience better. I'll check with him and PM you if you dont mind. Sign up to get updates and access to exclusive promotions. For a better experience, please enable JavaScript in your browser before proceeding. . Find load data for IMR 7977 Enduron propellant by clicking the button "Loads for this Powder". They're all having good results. PDF 338 Lapua Magnum - Barnes Bullets You are using an out of date browser. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. Loading density is perfect for magnums, nicely filling . it should give the highest velocity without showing signs of over pressure . The IMR series of handloading powders were the only choice to wring full performance out of rifle calibers. Ramshot Hunter. mdslammer Sergeant. Took a while but finally have all the components to reload my 338 Lapua Mag. 8. for a 338 lapua RL33 is going to be hard to beat . The first IMR reloading powders included ever popular favorites IMR3031 (1934), IMR4064 (1935) and IMR4350 (1940). I myself have been shooting Sierra 300gr with H1000. The 33 Nosler case holds 88.3 grains of water. IMR Enduron 7977 is a slower burn rate in the Enduron family. . Only did a velocity check on back behind the garage. Lapua's Scenar-L bullet is the result of decades of experience and state of the art manufacturing capabilities combined with extensive testing. Using bullets from Barnes TTSX, Barnes TSX, Speer SP, Nosler Part, Sierra SPBT, Hornady SP, Barnes TTSX BT, Swift SP, Sierra HPBT.