Join TexasGunTalk

XDM conversion, 10mm to 40 S&W and 357 Sig

Discussion in 'Handguns' started by Maverick44, Sep 21, 2019.

  1. Maverick44

    Maverick44 Certified All-American Gun Nut

    Bar-Sto offers 9x25 Dillon, 40 S&W, and 357 Sig barrels for the 4.5" 10mm XDM, which is what I have. All of these are calibers I'd like to own in a full sized handgun, and considering how much I like my XDM, I think it would make sense to pick up these barrels and have a kick ass multi caliber system. It would also be far cheaper than buying three more XDMs.

    Now, I know the 9x25 is a simple conversion. All you need is a barrel. The 10mm springs (especially mine since I upgraded to some heavier springs) and the 10mm mag will work just fine with 9x25.

    40 S&W and 357 Sig is what I'm not entirely sure about. I assume they would need lighter springs (which are cheap enough to buy), but I am not sure about the mags. Factory XDM 40 and 357 mags will not fit the 10/45 frame XDMs. Should unmodified 10mm mags work just fine?
     


  2. Bozz10mm

    Bozz10mm TGT Addict TGT Supporter

    5,668
    2,352
    113
    Oct 5, 2013
    Georgetown
    They should work just fine. At least they do with the Glock 20 when shooting 40 S&W. Don't know why XDm mags wouldn't work the same. 357 Sig? You won't know til you try it.

     
  3. BRD@66

    BRD@66 TGT Addict

    7,159
    4,534
    113
    Jan 23, 2014
    Liberty Hill
    My Glock .357 Sig mags work as .40 mags -only a barrel change to make a model 32 into a model 23 (IIRC).
     
  4. Maverick44

    Maverick44 Certified All-American Gun Nut

    Welp, I'm going for it. I'm starting out with a 357 Sig barrel, and then I'll probably go for the 40 S&W. I bought a shit ton of .40 brass, and more than enough 357 Sig brass to get me going.

    I looked at the cost of getting some 9x25 Dillon dies, and they are stoopid expensive ($150). I might hold off on getting that barrel until later...
     
  5. xdmikey

    xdmikey Active Member

    640
    66
    28
    Nov 27, 2009
    cypress, tx
    I shoot 40 in my g20 with the stock barrel.

    I also load 10mm rounds in 40 cases. They are NOT nuclear rounds, just 10mm that I shoot at the range.

    They are loaded long, 10mm COL long. There is a thread or two on GT on this.
     
    Maverick44 and TxStetson like this.
  6. Maverick44

    Maverick44 Certified All-American Gun Nut

    I gotta hand it to Bar Sto, they are FAST. Their stated wait time for a barrel is 4 weeks MIN on their site. They got it done and shipped in 1 week. That kind of caught me off guard, so I had to hurry up and buy the dies. I also emailed them a question last week, and they responded in less than 2 hours. That is some grade A customer service. :D

    I will do a full review when it gets here.

    Sent from my SM-G965U using Tapatalk
     
    Bozz10mm likes this.
  7. Maverick44

    Maverick44 Certified All-American Gun Nut

    I got the barrel in today!

    They say that 75% of all of their semi fit barrels should just drop in. Guess who got one of the 25%?

    After a bit of research and a lot of talking myself up to do it, I fitted the thing myself. Honestly, it wasn't that bad. It was VERY simple. You've just got to think ahead, and take your sweet time. I finally got it to drop in freely, and there is noticeably less wiggle room than in the factory "match" barrel. This thing aught to shoot like a dream.

    I'll do a review thread after I get the dies in and put a couple hundred rounds through it.

    1fa3e3d76b40702948d29c891c81f6ec.jpg

    33567d8676bf193e0c66f55f1c333085.jpg
     
  8. xdmikey

    xdmikey Active Member

    640
    66
    28
    Nov 27, 2009
    cypress, tx
    The 357Sig and 40S&W are identical cases back to back.

    Yours isn’t the first story I’ve heard about great products from Barstow.
    I can’t wait to hear about your shooting experience with it.
     
    Maverick44 likes this.
  9. Maverick44

    Maverick44 Certified All-American Gun Nut

    50 rounds in, and I am completely ecstatic. I was worried that this barrel might be a bit finicky about shooting lead or powder coated lead bullets due to the right tolerances in the chamber. It's not. It fed the 120gr coated bullets smoothly. There wasn't a single issue, and the accuracy from the get go was fantastic. I can't wait to start working up loads in this thing. :D

    I'll load up a pile of ammo and put it through it's paces next week.

    Sent from my SM-G965U using Tapatalk
     
    ZX9RCAM likes this.
  10. xdmikey

    xdmikey Active Member

    640
    66
    28
    Nov 27, 2009
    cypress, tx
    So the 50 you fired were your handloads?

    That’s what I ant to hear about is loading the bottlenecks. I’m strongly considering loading X25 as well, depending on how it goes for you.

    Thanks for the info Maverick.
     


Share This Page