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Hunting
Extreme Long Range Hunting & Shooting (ELR)
33xc velocity
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<blockquote data-quote="Gregg C" data-source="post: 2891445" data-attributes="member: 103471"><p>I used to load and shoot a 338-378 Wby that I blew up. Built a 33XC to replace it. Close barrel lengths, Wby 31, XC 30. I never did achieve similar velocities. I am convinced it's barrel bore diameter. Although, the Wby was a 10 twist and the XC was a 9. Can't believe that made an nth of difference. 500 rds down the XC I gave up, and ordered a New Barrel..... A Lilja 10 twist at 34in. Why shovel more powder for less performance?As soon as the weather cools off( it's 112 here in Phx today) I'll get back out there, and then maybe I'll know something to share. Mean while, the best I got was around 3268... With 250 Bergers. I did see 3300 with LRT, but it hammered the snot out of the primer.</p><p>On the up side, I made my first ever, first shot, cold bore, at 985 ( in my mind, 1000 ) yd , 1 in high and left with it. Anyway , I'm pretty sure your mileage WILL vary!! Seems like everyone's does.</p></blockquote><p></p>
[QUOTE="Gregg C, post: 2891445, member: 103471"] I used to load and shoot a 338-378 Wby that I blew up. Built a 33XC to replace it. Close barrel lengths, Wby 31, XC 30. I never did achieve similar velocities. I am convinced it's barrel bore diameter. Although, the Wby was a 10 twist and the XC was a 9. Can't believe that made an nth of difference. 500 rds down the XC I gave up, and ordered a New Barrel..... A Lilja 10 twist at 34in. Why shovel more powder for less performance?As soon as the weather cools off( it's 112 here in Phx today) I'll get back out there, and then maybe I'll know something to share. Mean while, the best I got was around 3268... With 250 Bergers. I did see 3300 with LRT, but it hammered the snot out of the primer. On the up side, I made my first ever, first shot, cold bore, at 985 ( in my mind, 1000 ) yd , 1 in high and left with it. Anyway , I'm pretty sure your mileage WILL vary!! Seems like everyone's does. [/QUOTE]
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33xc velocity
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