7.62x39 150gr load help

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I have data with Reloader 7 (used with bolt action rifle!)

Reloader 7 is slightly slower than AA1680 and according to Speer Manual 13, 28 grains of AA1680 is max while 27 grains of RL 7 is max for the 125 grain bullet.

I have loaded 25 grains of RL 7 for a 150 grain Barnex TSX bullet. Therefore, 26 grains of AA1680 should be safe. Nevertheless, start with 24 grains of AA1680 and work up the load.

As a side note, I have also used 1.6cc (16.1 grains) of SR4759 with 150 grain Hornandy SP; accuracy is great .35" @ 100 yards for three shots
 
I really like 1680 and N-120 for this cartridge but in my opinion these two propellants are best suited for getting the most out of bullets 125grns or lighter. If these propellants were Any faster on the burnrate scale and these two propellants would be coincided magnum handgun powders

My experiences tended to reflect that powders between H335 and RE7 work better for these heavier projectiles
 
My reloading pay site lists several top loads, using two powders that gives the highest velocities using 150gr bullets and a 22" barrel.

Rel-10x and H322 both show over 2300fps with their maximum loads and a 22" barrel.

AA1680 max loads shows a little over 2100fps.

I used to load 7.62x39 for an SKS and used Rel-7 with 125gr bullets.


NCsmitty
 
28gr of H322 in a Rem case under a Sierra 150gr .311 bullet gave me a little over 2200fps from a 16" Shaw tube.
 
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