https://castboolits.gunloads.com/sho...LeveRevolution
Picked up a pound of the new Hodgdon LeveRevolution powder. I wanted to get a feel for this powder before attempting cast bullet loads. The suggested load on teh powder lable said 35.5 gr with the 160 gr FTX bullet. I didn't have any of those but wanted to see how that powder did with 150 gr jacketed. I've a supply of 150 gr Wonchester 30-30 PPs so I decided to work up a load with those. I started at 36 gr and worked up to 40 gr.
FLS'd PMC cases were used with WLR primers A LFCD was used to apply the crimp. AOL was 2.53". The rifle used for the test is my M94AE which has a strain gauge attached for psi measurements via the M43 Oehler PBL. The test was ran at TRRC range in University Place, 240 ft ASL with the temp at 48 degrees.
A 5 shot string of factory 160 LeveRevolution 160 gr FTX rounds were fired prior to the test to get a "reference" for velocity and the peak MAP (Maximum Average pressure). The factory ammo ran 2433 fps at 36,800 psi(M43). A previous test of that factory ammunition at 75 degrees gave 2452 fps at 37,800 psi(M43). The SAAMI MAP for the 30-30 is 42,000 psi. Given the temperature this morning I decided that a psi(M43) of 37,000 would be my MAP with the reloads.
Bottom line is 40 gr of LeveRevolution under that 150 gr PP is a 100% density load. It topped out at 37,100 psi(M43) with a velocity of 2551 fps. Accuracy for the 5 shots was 2.1" with the apurture sights. The time/pressure curve was not as steep with considerably more time under the "rise" than with the factory load. The peak psi was reached at mid barrel length (12") with the reload vs 9" with the factory load. Standard factory 150/170 gr jacketed load hit peak psi at 7 - 8" of barrel. Yes I can measure where the peak psi occurs in the barrel.
Some years back after reading Paco kelly's articles on loading for the newer M94s I developed a Paco 150 gr load using H335 in a similar M94AE with a 24" barrel. Loads were developed by watching primer back out and stopping when the primer was no longer backing out. This indicates there is then sufficient psi to be pushing the case back against the bolt. PO Ackley gives a very good description of this technique in his writings. I stopped 3 gr under what a current loading manual listed as max for that bullet at the tiem. Velocity was 2527 fps and accuracy was good. That load tested this morning revealed a MAP of 44,400 psi(M43), obviously over SAAMI's MAP for the 30-30.
Bottom line here is that the LeveRevolution Powder is allowing a very real 2550 fps with 150 gr jacketed bullet at factory level psi's below the SAAMI MAP. That's pretty darn good to me and is a worth while powder thus far tested. I'm looking forward to some 311041s over this powder in this M94AE.
Larry Gibson