Need help with .30 bullet selection

[Karl]

Too all,

Great information. Given the bore dimensions above, what would be the ideal size for lead bullets?

Rich, the drilling rig for adjusting bullet weight looks good. My concern would be that the friction created by the longer bearing surface of the bullet might increase pressure to an unsatisfactory level.
KFS

[sheepherder]

Originally Posted by Karl

Rich, the drilling rig for adjusting bullet weight looks good. My concern would be that the friction created by the longer bearing surface of the bullet might increase pressure to an unsatisfactory level.
KFS

Hi Karl!

The 30 Carbine bullet is ~.130" longer than an 86 gr FMJ...

I started with a light load...And I've experimented with several powders...The M30 has a 5 1/2" barrel...My experience is empirical...

If you have doubts, then disregard...

(Lemme look here...one...two...three...ten...yes, I still have ten fingers...)

[Hugh]

Originally Posted by Karl

Too all,

Great information. Given the bore dimensions above, what would be the ideal size for lead bullets?

Rich, the drilling rig for adjusting bullet weight looks good. My concern would be that the friction created by the longer bearing surface of the bullet might increase pressure to an unsatisfactory level.
KFS

Cast lead bullets for the 30 Luger should be .312 in.
I have new WW 30 Luger brass for $30/100 postage paid.