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5/17/2012 10:37:56 AM EDT
Hey folks I'm just wondering if anyone has or knows where to find specs on the velocity that a BCG travels at when using a rifle length gas system and rifle buffer weight (and/or with any other configuration). It would be best if it included both how fast the BCG travels rearward upon firing and also the speed when retuning/stripping a round. I feel like I've seen this info before somewhere but can't find it now.

Thanks!
5/17/2012 11:10:13 AM EDT
[#1]
Every rifle would be different.

Buffer spring weight, buffer weight, gas port size (not all are the same), lubrication would play into the factor, wear of the BCG (new vs worn), hammer spring weight, and ammunition used (some are higher pressure than others).
5/17/2012 11:16:16 AM EDT
[#2]
Yeah I figured that would be the case. I think the stuff I saw was from military testing, using all-new Colt parts and at-the-time standard milspec ammo. As long as the info includes those variables I'll be happy. Even a ball-park estimate or range would be better than nothing.
5/17/2012 12:04:46 PM EDT
[#3]
pressure on the bolt carrier key... 20" M16, 100psi..... 14.5" M4 125psi
5/17/2012 2:18:17 PM EDT
[#4]
Quoted:
Hey folks I'm just wondering if anyone has or knows where to find specs on the velocity that a BCG travels at when using a rifle length gas system and rifle buffer weight (and/or with any other configuration). It would be best if it included both how fast the BCG travels rearward upon firing and also the speed when retuning/stripping a round. I feel like I've seen this info before somewhere but can't find it now.

Thanks!


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