We have one of Steve's first guns built in the early '80s on a Series 70 Colt. It's a beauty; 5" all hard chrome gun. Took it to Gunsite and shot the '83 world match with it in Yorktown.  Never did go the comp gun route although we did have a long slide built, but only because we had a 6" S&W USA MTU barrel that needed a home and we didn't want to cut it to 5". As I'm sure you know, that's back when you had to weld up the slide with another front end from another slide to get to 6".

    I'd bet a comped 10mm would be pretty cool though. Although the long slide Bruin seems to help with recoil considerably I'd bet ports would help even more.

Yeah.  I see lots of advantages to a Supercomp in 10mm.

First, added mass during locked travel portion of the recoil operation is going drop the slide speed a good deal.

Second, the shortened slide Steve used will have less mass at the end of the slide stroke, reducing the muzzle flip inducing inertia.

Third, the ports will counter what flip there is, making for very rapid target re-acquisition.

Fourth, since he shortened the slide before he added the comp, the gun doesn't end up nearly as long as a 6" longslide.  I would love to handle one and see if it was "carry-able".  I have no issues with a 5" 1911.

Just put a comp on my G20 7" KKM barrel.  Not sure if velocity is affected yet but the emptys now go 10' vs 15' and the felt recoil might be about that same 1/3 reduction.  Looks problematic to get the rig out of a chest holster though.

Quote from: Markwell on August 18 2021 07:53:16 AM MDT
   

    I'd bet a comped 10mm would be pretty cool though. Although the long slide Bruin seems to help with recoil considerably I'd bet ports would help even more.

I had a Hienie compensated barrel on my Delta Elite back in the day, it was a real hoot to shoot, especially with hot-loaded 135gr. Noslers and a bucketload of AA#7 powder behind them.   With 20gr. SWCs, it was about  like a .45 with 200gr. SWCs, which I used in my .45s, but those light bullets with a huge bunch of powder behind them were a real fun load to shoot. I'd put a Clark scope mount (the one that replaced the left grip) on the pistol with a 2X Tasco, and the gun had very little muzzle flip to it. Like I said, it was a real hoot to shoot. I shouldn't have sold it, it was a real blast.

In 1987, I bought a Colt Delta Elite. A steady diet of Norma ammo, and within 500 rounds, I had a cracked frame! I returned the entire firearm to Colt, and they replaced the frame. This time, I noticed a hairline crack at the hole where the slide lock entered on the left side of the frame, at around the 200 round count. Another trip to Colt, and another new frame. This time, I sold the handgun to a dealer at a gunshow. Since then, I own a Kimber, a RAI, a Glock 20 and a Glock 40 that has not suffered any issues. I think those original Colt frames just couldn't take the pounding of the early ammo. I sure wish I had kept that Colt though!

You are really gonna hate selling it once you hear how Colt fixed the issue.  Those cracks were not impactful to function and the metal in the rail where they crack wasn't needed.  Colt just altered their machining process.  They started making frames that just had a gap in the rail where they would crack.

https://www.1911addicts.com/cdn-cgi/image/format=auto,onerror=redirect,width=1920,height=1920,fit=scale-down/https://www.1911addicts.com/attachments/frame-left-jpg.134407/

Quote from: sqlbullet on April 04 2022 09:04:16 AM MDT
You are really gonna hate selling it once you hear how Colt fixed the issue.  Those cracks were not impactful to function and the metal in the rail where they crack wasn't needed.  Colt just altered their machining process.  They started making frames that just had a gap in the rail where they would crack.

https://www.1911addicts.com/cdn-cgi/image/format=auto,onerror=redirect,width=1920,height=1920,fit=scale-down/https://www.1911addicts.com/attachments/frame-left-jpg.134407/

Yup, I still have my blued DE and it is one of the early ones machined this way. Pretty sure I bought it in 1988, no later.