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The 45 ACP is still lethal out at that range, as the FMJ bullets still had a lot of momentum to them with plenty of penetration power. But it is a exercise mostly as unless you are in a war maybe, there isn't much reason to shoot that far for self defense.
I have a .45 ACP 16" MechTech conversion unit on a stock Rock Island 1911 frame. I also have a 16" Olympic Arms .45 ACP AR15. I tried to find internet and reference book bullet drop information for shooting a 230 grain .45 ACP round to Point of Aim (POA) at a distance of 100 yards (through a 16" barrel).
The Quick n’ Dirty on .45 ACP The .45 Auto, or .45 ACP (Automatic Colt Pistol), cartridge is, like the 9mm, a century-old military cartridge designed by the legendary John Browning in 1904. It first saw service in the U.S. Army’s M1911 handgun, and it remains in service with certain Army and Marine units today. 9mm vs 45 ACP: Specs Compared
Primer pocket depth is usually 0.120", so the diagram measurements could be a hair off, as Starline minimum measurement for those diagrams (measured from the bottom of the interior cavity to the cartridge base) would be 0.161" for the 45 ACP, 0.165 for the +P and 0.170 for the 45 Super.
.460 Rowland, .45 super or 10mm with Underwood ammo out of a fully supported barrel. Those 3 and call it a day. .45 ACP is a low pressure round. Trying to make it into high pressure round doesn’t make sense when the above 3 are somewhat available. Good luck.
The one thing constant about using the .45 bore size bullets is apples to apples in the hole going in to the target. However I was certainly surprized a bit by how quickly the lighter bullets in 9MM lose velocity. Perhaps a look at the Federal Ballistics chart and seeing how the percentages are for a .357 Mag in 125 gr. vs 158 gr. Of course the ...
45 ACP Ballistics - Velocity, Energy, Drop & More (ammunitiontogo.com) Why do you need three 44 magnum pistols? This little snub nose is for town, this 4 inch is for woods carry and this big one is for hunting.
10 mm puts unnecessary battering and stress on a regular (5 inch) 1911. For me, the .45 acp in a fullsize 1911 is versatile and effective enough as a self defense and fun in the range combination. The .45 acp is widely available too, and that contributes to its desirability factor - for me.
Hey guys, I am kinda in the same situation. I was considering using some of my Federal 155 Large Mag Pistol Primers to load .45 ACP for my S&W SR 1911. Any additional guidance? I also don't have any equipment to capture velocity, so was wondering where I should "stop" as far as a safe load.
The second installment of the Underwood hard cast woods load we take a look at the .45 ACP+P and the .45 Super. Both of these loads use the same 255gr hard cast Hi-Tek coated bullet. I got a five shot average velocity of 891fps with a high of 902fps and low 888fps.