Recent content by andorra

My question was a ballistic one. The ACP & the AR have the same case capacity, shoot the same weight bullet at the same velocity. The factory loadings have identical ballistics, 230 grain bullets at 830 fps. If both cartridges shoot a 230 gr .45 bullet at about 830 fps, from the same size case...

The Lyman pistol & revolver reloading guide lists dozens of loads for the ACP & AR and lists their pressures. Easy to compare. AR or ACP, lead bullet or jacketed, if same velocity and bullet weight the pressure is the same. Factory ACP and AR both shoot 230 grain bullets at about 830fps.

Obtaining and fitting a new cylinder really is not that simple. I like the fact that the cylinder, although shaved, is the original cylinder. The cylinder is not that modified, just slightly shaved at the rear. I shoot light 45 ACP loads, not a problem. This pressure question is one that no...

Not true. Checking the Lyman reloading manual, which lists pressures, a .45 230 grain bullet at 850 fps has the same pressure whether the bullet is lead or jacketed. The jacketed bullet uses slightly more of the same powder to achieve the same velocity, but that does not create more pressure...

"So only use factory AR ammo and/or only reload them to a factory duplication load to be safe in your gun." The point is, the 45 ACP and the 45 AR have the exact same ballistics. 230 gr at 830 fps. A factory duplication load of the 45 AR is exactly the same ballistics as a factory 45 ACP. 230...

The question is, if the 45 ACP and 45 Auto Rim both have the exact same case capacity, and shoot the same weight bullet at the same velocity, why is one safe to shoot in these converted guns and the other not safe.

The loading manuals show loads for the 45 Auto Rim with jacketed bullets with the same velocity as the 45 ACP with the same powders.

It is converted to .45 Auto Rim. I have been shooting it with reduced loads in .45 ACP cases and moon clips. Every source I checked says these .455 to .45 conversions are unsafe with factory .45 ACP ammo, but safe with .45 Auto Rim ammo.

I have a .455 S&W made 1916 converted to .45 Auto Rim. Marked .45 AR. Everything I read says do not use .45 ACP ammo, pressure is too high. According to SAMMI the max for .45 ACP is 21, 000 psi. The max for .45 AR is 16.000 psi. The 2 have the same case capacity, shoot the same weight bullet...

Thanks. Great forum.

I was just checking to see when S&W started using medallions in the grips.

I have a S&W top break .38 with pearl grips. The gun was made in 1900, the pearl grips look original, but have the early medallions. Isn't this too early for medallions?

5 screw K-22, circa 1953. TT, TH. Perfect tight solid action. Excellent bore. Shows just light use. Light scroll engraving in flutes. $450+ $50 insured shipping from my FFL Email me for pictures. [email protected]

Excellent condition set of vintage Sambar Stag N frame grips. Tried on several, not under sized on any. Nicer color and texture than the pictures show. $300 priority delivered/insured. Email me for pictures. [email protected]

Sounds like good advice. Thanks