Magnumite
Ultimate Member
I have been sitting the idea of a 45 Super/SMC pistol for awhile. This cartridge is externally a 45 ACP but operates at higher pressures. Ballistics with some commercial specialty ammo companies are in the vicinity of:
> 185 grain @ 1425 fps for 835 ft-pounds of energy;
> and 230 grain @ 1225 fps for 750 ft-pounds of energy.
This is young 44 Magnum territory. With a 6” barrel it is deer legal in Maryland. Which is how I am building this one.
It is a Springfield Armory Mil-Spec which I an redoing, kerping the Mil-Spec retro flavor and fitting a 6” 45 Super/SMC top end. The pistol will be a 45 ACP/45 Super convertible.
Well, here’s a start. There will be complete slide and recoil assemblies for each top, slide stop, and a mainspring specific to each caliber. This being a keeper is why I used a Springer Mil-Spec as the base pistol. Keeping with the contemporary features while maintaining a retro flavor of 6” long slide, chambering, and Derr grip safety I chose to use an Extreme Engineering Wide (semi wide) bobbed, serrated hammer. Most, if not all, of the internals will be upgraded as shown. Parts displayed will be used in completion of this build.
The ballistics and lot tag in the upper left corner is from Federal rimfire ammo photo bombing my pic.
Slide-frame fit clearances (on upper left slip of paper) obtained were largely dictated by the dimensions of the base frame. I’ll use a BoMar pattern Colt take-off rear sight and a Novak front post or semi post front sight. The present reverse plug is a top hat type supported part from TMC…for 6” long slide. This is a part I am not too fond out of all their other very nice products. The spring bore in the plug only accepts smaller diameter springs or small gauge spring wire. I now have it where it just accepts the long slide specific Wolf recoil spring but if the plug fails I have lots to do on a new plug. Same thing occured on the 5” 9mm I built. So I’ll be ordering and EGW cutter and reverse plug. Their plug, however, is compatible with the much more common 5” slide recoil springs.
> 185 grain @ 1425 fps for 835 ft-pounds of energy;
> and 230 grain @ 1225 fps for 750 ft-pounds of energy.
This is young 44 Magnum territory. With a 6” barrel it is deer legal in Maryland. Which is how I am building this one.
It is a Springfield Armory Mil-Spec which I an redoing, kerping the Mil-Spec retro flavor and fitting a 6” 45 Super/SMC top end. The pistol will be a 45 ACP/45 Super convertible.
Well, here’s a start. There will be complete slide and recoil assemblies for each top, slide stop, and a mainspring specific to each caliber. This being a keeper is why I used a Springer Mil-Spec as the base pistol. Keeping with the contemporary features while maintaining a retro flavor of 6” long slide, chambering, and Derr grip safety I chose to use an Extreme Engineering Wide (semi wide) bobbed, serrated hammer. Most, if not all, of the internals will be upgraded as shown. Parts displayed will be used in completion of this build.
The ballistics and lot tag in the upper left corner is from Federal rimfire ammo photo bombing my pic.
Slide-frame fit clearances (on upper left slip of paper) obtained were largely dictated by the dimensions of the base frame. I’ll use a BoMar pattern Colt take-off rear sight and a Novak front post or semi post front sight. The present reverse plug is a top hat type supported part from TMC…for 6” long slide. This is a part I am not too fond out of all their other very nice products. The spring bore in the plug only accepts smaller diameter springs or small gauge spring wire. I now have it where it just accepts the long slide specific Wolf recoil spring but if the plug fails I have lots to do on a new plug. Same thing occured on the 5” 9mm I built. So I’ll be ordering and EGW cutter and reverse plug. Their plug, however, is compatible with the much more common 5” slide recoil springs.