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.357sig round out of G33

Discussion in 'Caliber Corner' started by SickShot, Nov 3, 2011.

  1. Does the short(er) barrel of the G33 negate the increased FPS benefits of the .357 sig round???

    Have any of you G-Talkers done a chrono comparision? G31 vs. G33???


  2. dkf


    Aug 6, 2010
    Your looking high 1200s for factory rounds advertised at 1350-1375fps out of a G33. Still plenty fast to be effective.
    Last edited: Nov 3, 2011

  3. NG VI

    NG VI

    Feb 20, 2008
    Look at the Cor-bon 115 and 125 grain 9mm vs .357 offerings. It takes 11" of barrel for the 115+P in 9mm to equal the same bullet fired out of a .357 Sig with a 4" barrel. The 125+P 9mm NEVER catches up to the 125 .357 load from a 4" barrel. Even the 18" barrel was slightly slower than the 4" .357. Those are fairly hot 9mm loads too, some of the few that seem to gain any significant velocity from a long barrel.

    A 3.5" .357 is short barreled, sure, but not THAT short barreled.

    If you think that's a real advantage over the same gun in 9mm, go for it. People seem to love their Sig-chambered guns, say they are accurate and fun. Personally I like 9mm, but it isn't as fast as a .357 and to say +P 9mm is almost there ignores the weight and speed advantage a similar .357 will always have.
  4. thanks for the responses!
  5. CDW4ME


    Jun 5, 2009
    Chrono average for 5 shots out of my 33:
    Ranger T 125 gr. @ 1,280 fps / 454# KE
    Gold Dot 125 gr. @ 1,315 / 480# KE
  6. barth

    barth six barrels

    Oct 7, 2011
    The Free Zone
    chronographed (with a real chrono) these velocities with Glock 33:
    FED 125 gr @ 1,272
    Gold Dot 125 gr. @ 1,315
    Cor-Bon 125 gr. @ 1,324
  7. Tiro Fijo

    Tiro Fijo

    May 31, 2011
    The only downside to the G33 is the incredible blast. Count on permanent hearing damage if you have to shoot it in a self defense scenario. You won't notice it right away but the next day very much. At the least tinnitis forever.
  8. PghJim


    Apr 21, 2005
    I get about 1,500 fps out of a 4.5" barreled G32 (same as a G31) and I get over 1,400 fps out of the 3.5" G33 using Double Tap's 125gr Sierra load. If I go with a standard 1,370 fps load in the 4.5, I get about 1,295 in the G33. To me I would see little advantage using a round in my G33 that went less than 1,400 fps out of the 4.5" barrel in a G33.

    Buffalo Bore's 125gr load will do over 1,500 fps out of a 4.5" barrel, but I do not know what bullet Tim is using now for that round. The older BB rounds I have go 1,425 fps out of my G33. Keep in mind you are comparing two different barrels and you could get up to a 70 fps difference in these loads between two different barrels of the same length. I think the velocity by inch link that was posted is good.

    Also, a G32 barrel works in a G33 and only stick out about a half inch. That is how my G33 is currently set up. It is virtually un-noticable in concealed carry, but make a big difference in velocity.
    Last edited: Nov 6, 2011
  9. gatorboy


    Jul 26, 2001
    It's pretty nice
    Can't ask for more than that.
  10. ABNAK


    Apr 22, 2005
    In the past I had a Glock 23 barrel in my Glock 27. You're right: it doesn't make it any less concealable but makes for a considerable advantage in velocity.
  11. fredj338


    Dec 22, 2004
    SHorter bbls don't "negate" the vel of a round in the sense that it's still going faster than a lesser round. Is it worth the extra plast & recoil is the only answer you need to be asking. I love the round, but in a shorter bbl, it starts looking like a 9mm+P. The BlackHills 124gr+P+ runs 1220fps in my G26. Only about 30fps less then the 357sig in a sim bbl. Recoil & blast are sim too.
  12. gatorboy


    Jul 26, 2001
    It's pretty nice
    The 10mm is a great cartridge but I think the 23 is a better option for me
    than the 29 for the same reasons. A thinner full grip compact with three more rds. and it's 3-4 oz. lighter.
  13. fredj338


    Dec 22, 2004
    Not to mention a lot more good SD ammo choices for the 40 vs the 10mm. I wouldn't mind getting a G29, still, if I can't get it done w/ my G32, I probably need a rifle or SG.:wow:
    Last edited: Nov 6, 2011