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Hunting
Long Range Hunting & Shooting
338 Allen Xpress, RL33 load development
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<blockquote data-quote="Fiftydriver" data-source="post: 856651" data-attributes="member: 10"><p>What is your barrel length?</p><p> </p><p>Something is very odd here. 100.0 gr RL33 in the test 338 Allen Xpress with 28" barrel drive the 300 gr Berger to 2886 fps and 100 grains in the 338 AX should be a much lighter load pressure wise then 99.0 gr in the standard Lapua?????</p><p> </p><p>Unless your shooting a VERY short barrel length, something seems very odd. </p><p> </p><p>Is this a custom rifle or factory? Seems like pretty low velocity with both bullets and pretty high powder charges as well. Is the chrono reliable and proven?</p><p> </p><p>Again, so many variables that its hard to figure out whats going on without knowing all the information about the rifle. A factory rifle could explain this to some degree, a short barrel could also to some degree.</p><p> </p><p>I would think that the same powder charge (roughly) in the Lapua as compared to my 338 Allen Xpress would produce ALOT more pressure and as a result more velocity in similar length barrels but again, there are a lot of variables.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 856651, member: 10"] What is your barrel length? Something is very odd here. 100.0 gr RL33 in the test 338 Allen Xpress with 28" barrel drive the 300 gr Berger to 2886 fps and 100 grains in the 338 AX should be a much lighter load pressure wise then 99.0 gr in the standard Lapua????? Unless your shooting a VERY short barrel length, something seems very odd. Is this a custom rifle or factory? Seems like pretty low velocity with both bullets and pretty high powder charges as well. Is the chrono reliable and proven? Again, so many variables that its hard to figure out whats going on without knowing all the information about the rifle. A factory rifle could explain this to some degree, a short barrel could also to some degree. I would think that the same powder charge (roughly) in the Lapua as compared to my 338 Allen Xpress would produce ALOT more pressure and as a result more velocity in similar length barrels but again, there are a lot of variables. [/QUOTE]
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338 Allen Xpress, RL33 load development
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