Anyone shoot 45 Super thru their 45xx?

[Triathloncoach]

I was reading Wikipedia (☺) and it said with the proper springs a 4506, (doesn't mention other 45xx either yeah or nay) can shoot 45 Super. It doesn't say if the new springs will keep it from firing 45acp. The 45 Super is pushing 10mm ballistics.

[meh92]

The 24-26 pound recoil spring might cause you some issues. If I ever shoot .45 Super out of my 4506, I'll do a full spring swap.

[BLUEDOT37]

Originally Posted by Triathloncoach

I was reading Wikipedia (☺) and it said with the proper springs a 4506, (doesn't mention other 45xx either yeah or nay) can shoot 45 Super.

Any of them (4-1/4" & 5" bbls.) in good shape won't have a problem so long as you increase the spring rates since they all have fully supported chambers.

I have my 4586 setup: 22# recoil works fine. Put a new mainspring in too. If you replace the 20#'er with a 22# it'll help even more. If it's a TDA you likely won't notice any increase in the SA pull but may in the DA pull (also in a DAO gun too).

A new extra power (XP) firing pin spring (Wolff Springs includes one with each recoil spring) would be a good choice too at this point, as would XP magazine springs.
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Originally Posted by Triathloncoach

It doesn't say if the new springs will keep it from firing 45acp.

I've not had any malfunctions shooting "standard" pressure loads with mine sprung for 45 Super but I don't shoot any powder puff loads either. My Colt 1911 Government is sprung even more heavily & I've not had issues with it either.
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Originally Posted by Triathloncoach

The 45 Super is pushing 10mm ballistics.

About 10K psi difference in pressure though.

My max load is 11.3gr of Power Pistol, or Longshot, using a 185gr JHP Nosler, or Zero, bullets in Starline 45 Super cases.
OAL: 1.220" in the 4586 & 1.200" in the 1911.
(Use at your own risk.)

Real Guns - Handload Data - .45 Super

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Here's a couple related threads that may be of interest:

Wolff XP Recoil Springs for 4-1/4" bbls.

Change in recoil & hammer spring relationships

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[jd45]

Can I suggest you go to Youtube & check out the .460 Rowland cartridge? I found it very interesting,......... you might too. I believe it runs on the 1911 platform, ((or S&W equivlalents) & the .308 Win is the parent case. It uses a .451 projectile, & produces .44MAG MV & ME numbers, but requires the 25# springs mentioned. jd45

[duncan]

I love my 4506 and I reload most of the major calibers including 10mm.

For me, I'll shoot full power-house rounds out of my 1006.

It was designed from the ground up for hot loads.

YMMV

[BLUEDOT37]

Originally Posted by jd45

...check out the .460 Rowland cartridge? I believe it runs on the 1911 platform, ((or S&W equivlalents) & the .308 Win is the parent case. It uses a .451 projectile, & produces .44MAG MV & ME numbers, but requires the 25# springs mentioned. jd45

Big jump from 45 Super (28K PSI) to 460 Roland (40K CUP).

460 Roland conversion requires a new compensated/ported barrel, bushing, & barrel link & pin, besides the new 24# spring.

I'm not aware of any conversions for 3rd Gen S&Ws.

The 460 Roland is a lengthed & beefed up 45ACP case.

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[jd45]

BLUEDOT37, I stand corrected, & thanx for refreshing my memory. It's been several years since I went to his site, & I'd forgotten some important details & specs. Interesting concept, tho. He must've worked out the feed reliability bugs by now. jd45