Meplat diameters and length from meplat to crimp groove - 45 Colt bullets

[Naphtali]

Please identify meplat diameter and length from meplat to crimp groove for these Lyman 45 Colt bullets. I want to use these in my Freedom Arms Model 97s. Their Single Action Army-length cylinders limits overall cartridge length to 1.600 inches. So the amount of "nose" above cartridge case mouth can be a deal breaker for a given bullet's utility in the revolvers.

1. 452651 - 325 grains with gas check

2. 452664 - 250 grains plain base

3. 454190 - 250 grains plain base

[DuaneH]

Can't help on the first 2, I don't have those.

454190 is a copy of the traditional style 45 Colt bullet, and as such has no crimp groove. Simply crimp over the ogive. It will certainly work in an SAA length cylinder, being designed for the SAA. Near as I can measure, meplat is about .225.