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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
AR-50 Velocity. I need to know what velocity i should be getting with my new AR-50 50 BMG
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<blockquote data-quote="SteveLM" data-source="post: 2084068" data-attributes="member: 113868"><p>[USER=116964]@DanM55[/USER] : Look up Kirby Allen; he posts under "Fiftydriver." In particular, look for his discussion thread about the Serbu BFG-50A. Kirby discusses a 50 BMG load using A-Max's and a slightly compressed fill of WC-860 (IIRC). For a range of fills, he reported MV's in the range of 2500 to 2650 FPS out of a 26" barrel. Note also that the BFG-50A is an autoloader. The velocity increments per barrel length shown in the Lilja article referenced above are consistent with other literature sources that I've read, so correcting for a 30" barrel should add about 80 FPS, thus a "back of the envelope" estimate would be at least 2580 to 2730 FPS. I say "at least" to account for the difference between an autoloader and a bolt action.</p><p></p><p>Kirby builds custom rifles (Allen Precision Shooting) and, in the past, he has been friendly and helpful, so he may be willing to share other 50 BMG data with you if you ask. Hope that this helps you...</p></blockquote><p></p>
[QUOTE="SteveLM, post: 2084068, member: 113868"] [USER=116964]@DanM55[/USER] : Look up Kirby Allen; he posts under "Fiftydriver." In particular, look for his discussion thread about the Serbu BFG-50A. Kirby discusses a 50 BMG load using A-Max's and a slightly compressed fill of WC-860 (IIRC). For a range of fills, he reported MV's in the range of 2500 to 2650 FPS out of a 26" barrel. Note also that the BFG-50A is an autoloader. The velocity increments per barrel length shown in the Lilja article referenced above are consistent with other literature sources that I've read, so correcting for a 30" barrel should add about 80 FPS, thus a "back of the envelope" estimate would be at least 2580 to 2730 FPS. I say "at least" to account for the difference between an autoloader and a bolt action. Kirby builds custom rifles (Allen Precision Shooting) and, in the past, he has been friendly and helpful, so he may be willing to share other 50 BMG data with you if you ask. Hope that this helps you... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
AR-50 Velocity. I need to know what velocity i should be getting with my new AR-50 50 BMG
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