258gr 45 ACP loads

[MrM4]

I recently was given about 1000-1500 258gr .454 dia lead bullets. It was suggested to me to run them threw my lee .452 size die and maybe load them in a 45ACP for use in a Tommy Gun. I know they are a bit on the heavy side compared to most 45 ACP. I have a stock of Red Dot, Clays and Tight Group sitting around that I thought might do the job if its even possible.

I had considered checking the Tommy guns mag for max OAL and seating the bulet out a ways to make up for some of the size differance in the bullet. At this point I have not tried anything yet. I was wondering what experance or thoughts you all might have on using such a heavy bullet. Like I said this will be going threw a 1928 Tommy ONLY.

[44MAG#1]

This subject has been pounded to death. I would use the search feature and see if i could find some of the threads.
There are going to be some shouting from the roof top condeming ithe practice of heavier than normal bullets in ANY 45 acp handgun except maybe a revolver.
Others have done it, myself included, and see no problem with it.
You will have to pick which side you are going to side with on this one.

[MrM4]

I tried to search but I didnt have much luck. Im looking for a starting point. I will search some more.

[44MAG#1]

Here's one:
http://castboolits.gunloads.com/showthread.php?151872-Heavyweights-in-45-acp&highlight=260+gr+45+ACP

[TXGunNut]

It seems you have boolits for a 45 Colt. Now all you need is a revolver chambered for that cartridge, a handful of brass and a pound or two of BP and you're good to go!

[khmer6]

I've used 255gr in an auto before. I think my load data was using unique. I would have to find if

[Wayne Smith]

Guys, he's shooting a Thompson, you know, submachine gun, about 20lbs, what, a 16" barrel? Doesn't that change the equation somewhat? I really don't know, I have no experience with one. Seems to me a load that might shake up a 1911 would barely move a Thompson.

Am I wrong?

[rintinglen]

Weight of the gun has little to do with it. Overload the cartridge beyond design limits and wear will accelerate, parts will break. That is serious issue with a 20,000 dollar gun for which parts availability may be limited...

[pipehand]

An old friend used the 454190(?) Lyman mold for his Reising SMG, and his 1911's. The nose contour is close to GI ball. I believe he used Unique for powder.