Reeder Custom Guns - Hey JT is 10mm factory watered down?

WB
Hey JT is 10mm factory watered down?
Thursday, September 17, 2020, 13:12

That's Glock 23 .40 S&W performance, excepting the 175 gr. Silvertip. My cast .40 loads easy hit 1000 fps and more with published data. I can't remember me checking a factory 180-200 gr. .40 load that was not running 950-1000 fps. (Try that out of a 16 oz. Kahr!)

Some of my personal 10mm loads (Longshot and AA#7) are 300 fps beyond those you show with shorter barrels? Did domestic ammo makers back off some to keep from beating 1911 platforms to death? I know the FBI and Colt Delta's had a rough time with the 200 gr. at 1200.

As far as long slides are concerned they are neat but having a barrel sticking out an inch or so beyond the slide garners the exact same terminal performance. FWIW. If you want the balance and sighting plane I certainly understand.

Kimber questions - Paul Lauer, 2020-09-17, 11:36
- GNR 10MM Long slide - Joe Pollock, 2020-09-18, 04:59
- we have been building longslide 10mms for 20 years now - Gary Reeder, 2020-09-17, 15:26
  - and with GNR you can have it done right and done - charlie A., 2020-09-17, 16:24
- kimber 10mm - David Cox, 2020-09-17, 12:40
- 10mm 1911 - Pete, 2020-09-17, 11:56
  - Ruger 1911 10mm - Pete, 2020-09-17, 11:58
    - NIGHTHAWK LONGSLIDE - JT, 2020-09-17, 12:06
      - Nighthawks are very very nice (nm) - ChrisG, 2020-09-18, 04:42
      - Hey JT is 10mm factory watered down? - WB, 2020-09-17, 13:12
        YES I THINK ORIGINAL 200 @ 1200 - JT, 2020-09-17, 16:27
        wasn't that what Cooper wanted in the original 10mm? - Gary Reeder, 2020-09-17, 17:32
        I think that's what he touted back in the BrenTen days. - WB, 2020-09-17, 18:03
        you need to stop drinking John's toadstool coffee - Gary Reeder, 2020-09-18, 11:44
        the Bren was, to me, a great gun with a super smooth trigger - Gary Reeder, 2020-09-18, 12:19
        JT can correct me on this but the first 10mm ammo - Gary Reeder, 2020-09-18, 12:23
        I've done most of mine from a very ugly Glock 20 - WB, 2020-09-17, 17:18
      - Kimber 10mm - Rex, 2020-09-17, 13:02