Sun Apr 23, 2017 6:57 pm
Mon Apr 24, 2017 5:52 am
Mon Apr 24, 2017 7:17 am
Mon Apr 24, 2017 9:16 am
Mon Apr 24, 2017 9:44 am
1811GNR wrote:Is the BCG able to travel back as far in the 6.8 lower as it does in the 300blk lower?
Could the BCG be outrunning the mag spring in the 6.8 mags?
Have you compared spring and buffer lengths?
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Mon Apr 24, 2017 9:53 am
Mon Apr 24, 2017 2:58 pm
dreadi wrote:Thinking about physics....I would need a helper to shoot video in slo-mo to verify but, what if it's not short stroking at all? What if the follower spring is too slow (not enough tension) and the buffer spring is ahead of (faster than) the follower spring. It could be that the follower is not coming up fast enough for the bolt to catch.
Mon Apr 24, 2017 6:45 pm
1811GNR wrote:dreadi wrote:Thinking about physics....I would need a helper to shoot video in slo-mo to verify but, what if it's not short stroking at all? What if the follower spring is too slow (not enough tension) and the buffer spring is ahead of (faster than) the follower spring. It could be that the follower is not coming up fast enough for the bolt to catch.
That is what I was trying to say with: "Could the BCG be outrunning the mag spring in the 6.8 mags?" Wasn't very clear was it.
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Mon Apr 24, 2017 7:18 pm
dreadi wrote:So I took one of the 6.8 uppers and put it on my 300blk lower. The same firearm that was the donor bolt carrier for test. I even left the carbine buffer in it. BANG. Lock on bolt!
Mon Apr 24, 2017 8:10 pm
Mon Apr 24, 2017 10:01 pm
Tue Apr 25, 2017 3:13 am
dreadi wrote:Compare in what ways? Oh you mean to another 6.8.
Trigger and LPK are BCM
Tue Apr 25, 2017 7:14 am
Tue Apr 25, 2017 7:30 am
dreadi wrote:The 6.8 lower works with the 5.56 upper.
Tue Apr 25, 2017 7:52 am