If you can drop .twenty five or even more off your team measurements with simply a powder improve you had not made the Preliminary load properly and wish some help with processes VERY few guns can ONLY have a single precise load.
) For your offered cartridge the psi figure is going to be higher compared to cup figure. Won't automatically suggest the pressure is bigger, just a distinct method of arriving at the identical "intersection", so to speak.
For the those who Feel Toms function is not fully exact, and so forth. Dont choose his function right until you've got viewed it first hand and located the particular troubles with it, usually, maintain your traps shut and Allow the remainder of us study a quite possibly brilliant new powder and new loadings.
How can the propellant inside a cartridge load "suck air", it is a managed explosion, following the level of ignition The complete process incorporates a good strain differential (connected with the atmosphere) therefore we establish velocity while in the weakest part of the method, with any luck , the bullet.
I've learned to not listen to reduced ES' across a chrono. Several of the most precise loads I have observed Really don't write-up the very best figures, just question David Tubb.
My widest unfold was 6fps on any with the loads. The hundreds that shot the ideal showed a Widest unfold now I am recalling away from memory was 2fps out of 5 rounds.
Walt was contacted by the parents at Thunderbird Cartridge Organization to find out When the 8208 they acquired had any application for Benchrest shooting. There were three a lot of the surplus powder, and Walt identified a person to generally be better than another two.
In looking at the Hodgdon representitive speak about the powder he believed they should get 70 p.c in a lot of the proposed scenarios. That didnt' audio as well superior to me. I do know its a little kernel powder, so my guess is you are able to pack loads of it inside a scenario.
With Lapua brass and Varget we ran in need of situation ability when seating bullets to mag-length, and the most effective precision arrived at about 2860 fps, well underneath competitive Palma velocities.
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I had been intending to try some Varget for my .308 a hundred seventy five SMK, but.. just after reading your exam I will Do this alternatively but just can not find it now. I thank you for sharing your benefits. That is the goal of this forum try to place out information and facts and share Suggestions and afterwards Permit persons make your mind up.
AU I agree along with your feedback. If it doesn't present nearly anything new, why invest the dear primers to work up a different load.
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We now have a “Palma/Tactical” job gun during the is effective crafted by having an Eliseo chassis, Borden action, and considered one of Krieger’s pretty 1st 5R barrels. Original load tests with Hodgdon Varget confirmed outstanding accuracy probable, but we weren’t reaching the velocity we hoped to have with the 30″ medium-Palma-contour barrel.