I played around a good bit with reloading for the .45 Super. My setup was a Gen4 Glock 21 with a KKM 4 port compensated barrel and I used Starline 45 Super brass. Long and short of it is, with a comp and well supported barrel the .45 Super (450 SMC is essentially a small primer version of the 45 Super) will match the 460 Rowland. I played with 185gr all the way up to 300gr bullets and even with bullets north of 250gr, getting 850-900+ ft-lbs was no problem. Side note, had the barrel leade extended slightly so that it could chamber revolver profile bullets, which is why I was able to run up to 300gr (which btw ran 1150 fps from the 5" barrel).
It's a cool setup, very potent and unlike the 460 Rowland, you don't need a special barrel and can easily shoot .45 ACP from same setup (with a lot less recoil). Seeing what it was capable of was cool but I ultimately settled down a bit, probably wouldn't want the gun to live on a steady diet of top end loads, it'll wear the gun out quicker.
I think the reason most people aren't into the Super/SMC is because they're just not widely available and not many even know about them, plus even in "factory form" (read: boutique ammo makers), which is really "full power", they still recoil more and may or may not be reliable in many traditional 45 ACP guns. I think they're great options for those wanting big power in a semi auto, but many also don't see the point in that, either.
It's a cool setup, very potent and unlike the 460 Rowland, you don't need a special barrel and can easily shoot .45 ACP from same setup (with a lot less recoil). Seeing what it was capable of was cool but I ultimately settled down a bit, probably wouldn't want the gun to live on a steady diet of top end loads, it'll wear the gun out quicker.
I think the reason most people aren't into the Super/SMC is because they're just not widely available and not many even know about them, plus even in "factory form" (read: boutique ammo makers), which is really "full power", they still recoil more and may or may not be reliable in many traditional 45 ACP guns. I think they're great options for those wanting big power in a semi auto, but many also don't see the point in that, either.
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