451 and 452 bullets

22lr

22lr

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Another question. Well, you folks let me know when I use up my quota for asking questions.

I ordered .451 230 grains bullets and by mistake .452 250 gr bullets. Not too many but still, they are .452 and I wonder should I just keep them as memorabilia or are they ok in 45 ACP barrel?

Apart from .452 - where can I find .451 bullets heavier than 230 grains? Tables show charges for 250 and 260 grains bullets but I haven't seem them listed anywhere. SIR call both .451 and .452 just "45 caliber" and I thought those are same size bullets but they are not.
 
The std. dia. for most .45s is probably .452" and you can get some very heavy bullets in that diameter, bullets heavier than 230gr. will have a crimp groove as they are meant for the .45 Colt(revolver) or .454 Casull or some such. Bullets lighter then that will usually not have a crimp groove as they are meant for a taper crimp(.45 acp). You should not have any problem shooting .452" bullets in your pistol and you can use the 250 gr. bullets if they will fit due to length. There may be a shortage of data for the 250gr. in the autoloader as it meant for the .45 Colt.
 
Depending on the particular bore one size might shoot a bit better than the other but there probably isn't any reason that you couldn't use both.

Load up a dummy round to make sure that it chambers alright and keep back 10 or 15% on the powder. Can't see it being a problem.
 
Well, it didn't work very well. Hotter loads were ok but when I decided to make "target" load one bullet failed inside barrel. Tail portion caved in and mouth opened as if it hit the water or something. Forgot to mention those are hollow points. So I had to extract it from barrel. I wonder if I can use some kind of lube? Does anybody ever lubricates jacketed bullets? Well, anyways, its just theoretical question now as I am not going to shoot those through 45ACP barrel anymore.
 
"...some kind of lube?..." Nope. Jacketed HP bullets aren't intended to be driven at target velocities. They're too expensive to be shooting regularly anyway.
.250 grain bullets are too heavy for an ACP. 230 grain cast RN or FP with 4.5 grains of Bullseye works well as a target load. However, work up the load for your pistol.
 
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