SIGforum
Will a .40 cal bore lock work in a .410 bore shotgun?

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/320601935/m/7870038334

November 28, 2017, 12:11 PM
muddle_mann
Will a .40 cal bore lock work in a .410 bore shotgun?
A request for someone who has both a .40 cal pistol and a .410. Can you try a .40 bore lock in a .410 and let me know if it works?


—
Pissed off beats scared every time…

- Frank Castle

--
Sig P250c, Sig P250
November 28, 2017, 12:22 PM
tatortodd
Seems like it would be sloppy at best. .410 shotshells are interchangeable with .45 LC in guns like the Judge and Governor.

Neck diameter:
  • .45 LC - .480 in
  • .40 S&W - .423 in
  • .410 shot shell - .455 in


    • Ego is the anesthesia that deadens the pain of stupidity

    DISCLAIMER: These are the author's own personal views and do not represent the views of the author's employer.
    November 28, 2017, 02:56 PM
    muddle_mann
    Interesting. Never thought to look up diameters. That said neck diameters aren't bore diameters. So the bore diameter of .40 S&W is .401 and the bore diameter of a .410 is .41 I wonder if a 1/10th of an inch would render the bore lock un-usable.


    —
    Pissed off beats scared every time…

    - Frank Castle

    --
    Sig P250c, Sig P250
    November 28, 2017, 03:39 PM
    GaryBF
    What the hey is a "bore lock"?
    November 28, 2017, 04:35 PM
    olfuzzy
    If this is the one you're talking about, I don't think it will work. As you said, a .40 S&W is .401 but a .45 LC is .452


    November 28, 2017, 06:21 PM
    muddle_mann
    Yup those ^^^^


    —
    Pissed off beats scared every time…

    - Frank Castle

    --
    Sig P250c, Sig P250