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These are the 30-30 and 308 loads using shooternz's 151gr cast bullets that I have chronographed:
Calibre Case Primer Powder Charge fps Rifle
30-30 Winchester Federal Trailboss 7 1042 M94 16"...

I checked my notes, it's 11 grains to the bottom of the neck for the 30-30.

The Hornady 190gr Sub-X projectile is just under 1.3 inches long, the 170gr interlock is under 1 inch so I may have stability issues in the 30-30. The online calculator agrees, but it will be fine in...

Just the Trailboss, no filler needed, the Trailboss is quite bulky, if I recall correctly a case filled to the bottom of the neck was about 10 grains for 30-30 and 15 for 308. Standard large rifle...

I have a box of the 190gr projectiles to try out. I have been using 151gr cast bullets from shooternz, 7.5gr of Trailboss to be subsonic in my 16 inch barrel M94.