Need help, Load discrepancy Swift vs Hodgdon

For OBT, here is the muzzle disturbance vs time with the sound wave impact. Note the
multiple reflections. Amplitudes are constant as he did not model any energy losses.
obt1.jpg

expanded view of 1 set of impacts.

obt1x.jpg

Mr. Long was going for ultimate accuracy and timed the bullet exit
at the flat portion of the curve, just before 1.25mSec with the idea being
that for small changes in barrel time, say between 1.2 and 1.26mSec, there
is no change in muzzle disturbance.

For me, since only interested in hunting, I time my bullet exit half way between
the muzzle disturbances, i.e. 1.1875mSec. Yes, with natural reload variations,
the bullet exit will encounter more or less disturbance, but in this area, it is almost
2 orders of magnitude less than if the bullet exits at the sound wave impact!
 
Burn out as many barrels as you can, I say…
Shooting is enjoyable, so it doesn’t matter if it’s chasing small groups at the range, developing multiple loads, shooting competitions or filling refrigerated trucks with venison. When the barrel is cooked, screw in another one and keep going.

Globally, most of the youngsters today couldn’t care less about hunting and shooting, so why leave them a safe queen in pristine condition with a hardly used barrel?
Lol
Shoot them if you got em and Enjoy it. Have fun!
" Education is not the learning of facts, but the training of the mind to think." AE
 

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bigrich wrote on Bob Nelson 35Whelen's profile.
thanks for your reply bob , is it feasible to build a 444 on a P14/M17 , or is the no4 enfield easier to build? i know where i can buy a lothar walther barrel in 44, 1-38 twist , but i think with a barrel crown of .650" the profile is too light .
Duke1966 wrote on Flanders357's profile.
ok $120 plus shipping
teklanika_ray wrote on MShort's profile.
I have quite a bit of 458 win mag brass, most of it new. How much are you looking for?

Ray H
bigrich wrote on Bob Nelson 35Whelen's profile.
hey bob , new on here. i specifically joined to enquire about a 444 you built on a Enfield 4-1 you built . who did the barrel and what was the twist and profile specs ? look foward to your reply . cheers
 
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