100% burn rate at 80% of barrel length. Say 28" barrel, let us find 100% burn at 23" in 6 BR shooting a typical bullet using say Varget
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I see My mistake. Thanks for the clarification.Energy and Velocity continue to climb at very reduced amounts at that point, but pressures continue to decline long before burn out, and gradually continue to drop. From what the tables show.
I know from what Ive seen in my barrels up to as fast as 1-10 twist, shooting 80 grains and under, with powder burn rates from 322 thru 4895, I like 22.5to 23" max.
If shooting faster twist rates up to 1-8, (as fast as I use) shooting Varget to H4350 Burn rates, and 90 to 108 grain bullets, 26" is my prefered Max.
I've found very little gain past that, and I believe the forgiveness from the bench you loose more the longer you go in those situations. Meaning the more bench edicate is exposed and the less performance is gained. I call it my sweet spots!
Not sure, but the style shooting I do, accuracy is always top priority, speed is a by product for me, if it weren't I would move on to a BRA, or Dasher, then if energy is a concern, I would change caliber.I see My mistake. Thanks for the clarification.
The guys that shoot 30” barrels in FTR, are they trying to get the very last bit of velocity and energy at 1,000 yards ?
103% 107% drop tube and compress?I focus instead on muzzle pressure.
I run QL what-ifs for powder loads that gives me max MV (for my bullet & barrel length), at SAAMI max pressure, and 8Kpsi or less muzzle pressure, while at 100% load density.
For my drops it seems consistent 104% by QL.103% 107% drop tube and compress?
Gordons showing burn at 95% at 17 to 18 inches on Varget. QL is showing different 13 to 14 on same Varget load.100% burn rate at 80% of barrel length. Say 28" barrel, let us find 100% burn at 23" in 6 BR shooting a typical bullet using say Varget
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My example was for total burn at 23" for a 28" barrel.Gordons showing burn at 95% at 17 to 18 inches on Varget. QL is showing different 13 to 14 on same Varget load.