.45 ACP Bullet Diameter

[Mac]

I plan to begin reloading for my new (to me) vintage Series 70. Lead bullets from locall suppliers are available in .451, .452, .453, and .454 diameters.

Any suggestions on what to use?

Thanks
Mac

[Trapdoor]

I cast my own lead slugs and have very good performance with 0.452 diameter bullets in all my Colt 1911's. Lyman Products also suggests 0.452 too.

[porsche]

I cast my own and size at .452. Generally they work quite well in my guns.

[haggis]

0.452" is the standard lead bullet diameter for .45ACP, while 0.451" is the standard for jacketed. The 0.453" and 0.454" diameters are usually used in.45ACP revolvers with oversized throats.

Buck