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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need a little help with new 338 Lapua imp
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<blockquote data-quote="dkhunt14" data-source="post: 994714" data-attributes="member: 14053"><p>I used US869 with the 300 grain bullets. I have a 36 inch barrel and when it got cold I had erratic results. It was a very dirty powder. Then I went to Retumbo and my gun didn't like it. I went to H1000 and the accuracy was great put I hit pressure at 2980. I then went to R33 and went to 3070 with no pressure. Accuracy was better and velocity was consistent. I maybe could have gone farther but I shoot the 300 Grain Elite and when you go over 3000 you might have slump of the bullet. So I backed it down to 2993 with 104 grains of R33. That load shot 7 of 8 shots in 4 1/4 inches at 1000 and the one shot opened it up to 6 1/4 inches. We also tried the R33 in a 338 RUM IMP. and it shot faster and more accurate then Retumbo with no pressure. Matt</p></blockquote><p></p>
[QUOTE="dkhunt14, post: 994714, member: 14053"] I used US869 with the 300 grain bullets. I have a 36 inch barrel and when it got cold I had erratic results. It was a very dirty powder. Then I went to Retumbo and my gun didn't like it. I went to H1000 and the accuracy was great put I hit pressure at 2980. I then went to R33 and went to 3070 with no pressure. Accuracy was better and velocity was consistent. I maybe could have gone farther but I shoot the 300 Grain Elite and when you go over 3000 you might have slump of the bullet. So I backed it down to 2993 with 104 grains of R33. That load shot 7 of 8 shots in 4 1/4 inches at 1000 and the one shot opened it up to 6 1/4 inches. We also tried the R33 in a 338 RUM IMP. and it shot faster and more accurate then Retumbo with no pressure. Matt [/QUOTE]
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Need a little help with new 338 Lapua imp
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