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holsterguy
02-24-2017, 01:57 PM
Any ideas what size bullet to go with for a .45 saa with way to big chamber throats?
barrel 451 or 452, chamber mouths 460.

Outpost75
02-24-2017, 02:03 PM
ALWAYS size revolver bullets to fit the chamber throats, about 0.0005" to 0.0010" under chamber mouths is correct.

bouncer50
02-24-2017, 03:38 PM
What year is your 45saa. Pre WW11 45 Colt ammo ran 454 to 455 size lead bullet. Best to slug your barrel also.

holsterguy
02-24-2017, 03:49 PM
Sorry guys, got in a hurry typing. Not a colt, but a pietta.

Dan Cash
02-24-2017, 04:22 PM
.460 chamber throat; .460 bullet.

holsterguy
02-24-2017, 04:35 PM
That raises the question of whether the brass will size the bullet too small. Enlarging the mold shouldn't be a problem. I'll just beagle it.

Lloyd Smale
02-25-2017, 10:04 AM
you have an odd problem there. Usually its the opposite (small chambers, big bore) Id probably size to a tad bits smaller then 460. Maybe 459 and hope you have a forcing cone that has a gradual approach and good alignment.
.460 chamber throat; .460 bullet.

DougGuy
02-25-2017, 10:32 AM
I have a Uberti with 4565" throats, I size to .456" and get excellent results with it, accurate, no leading, at least the throats were all even and I didn't have to touch it with any tooling other than pin gages.

I did make a custom expander for the Lee powder die, the rest of the standard 45 Colt die set worked fine.

Edit: I DID lightly touch the forcing cone with an 11 degree cutter before I ever shot it the first time, one look revealed it was simply cut too small. I love it when they don't remove too much metal, I can then fine tune to my liking..

johnson1942
02-25-2017, 07:30 PM
doug guy is right, he taught me how to redue my forcing cones and on my 44/40 it made a huge difference. the bullets come out of the 44/40 way over sized but it become a tackdriver with the new 11 degree forcing cone. the original from the factory was bad, even with gouges and pits in it. when doug guy speaks, i listen.