1858 Remmy Conversion Cylinder - ACP vs Long Colt

[zomie]

http://www.howelloldwestconversions.com/shop/productinfo.cfm?catID=261&productid=822&cfid=2245426&cftoken=93978171

What is the big difference between the two types of ammo in these conversions? I believe you still need to use cowboy loads with both right?

The only thing I can figure is that if you are reloading that the acp brass is cheaper and easier to get supplies for, but it is easier to buy long colt cowboy rounds.

Thanks in advance

[Nitro Express!]

.45 ACP is a rimless round designed for semi-autos and is shorter than .45 LC. .45 LC is a round that is rimmed and meant for use with revolvers. The choice is yours, but I would prefer .45 LC in a revolver over .45 ACP. And if you convert a BP pistol, you should stick to BP loads.

[Cowboy T]

Ballistically, not a lot of difference, assuming you stay within SAAMI specs. The .45 Colt round will do the same thing that .45 ACP will, at a slightly lower pressure, due to the size of the case. Either way, it's fun to do and perfectly safe, as long as you keep your loads toward the lower side of the scale. Remember, you don't have to worry about cycling a semi-auto action if you go .45 ACP, so your loads can be a little softer.

[zomie]

Yeah it is a shame I can't shoot factory acp rounds out of the thing

[smle-man]

What's a Remmy? Oh, do you mean Remington?

[Cowboy T]

Yeah it is a shame I can't shoot factory acp rounds out of the thing

Oh, come on, who'd shoot factory when you can handload?

If the cylinder's rated for it, then you should be OK. What I'm thinking of is longevity of the frame, timing, etc., i. e. like you see with S&W K-frames when fed a steady diet of full-house .357 Magnums.

Give Taylor's & Co. a call about it. They should be able to give you some guidance.

[14delta]

When I bought my 58 Remingtons from Taylors a few years ago I also bought the conversion cylinders which Taylors fitted to the guns before sending them to me.
I shot the 58's with the conversions using light smokeless loads and cartridges loaded with American Pioneer Powder using regular bullets or round balls loaded in the 45 colt cases, All the above performed well but I found it was just as easy for me to pull the cylinder out of the gun and load it with powder and ball on a cylinder press.
The only advantages I see in using 45acp cases is you could load less black powder in them with out using fillers to get light loads and the 45acp cases are less expensive than 45colt cases.
A couple things to consider, The 58's are built for black powder no matter what cartridges you shoot in them the loads will have to be kept light(Cowboy action loads) don't even think of using 45 acp hardball.
When you have the loaded cylinder in your hand it's basically a hand grenade if you drop it on a hard surface there's a good chance it's going to go off.
Good luck
14delta