Debris blasting out of the rear of my CZ Omega

[RNA]

Yeah, it's more gappy. Check out this old thread where the OP even ponders about the effects of such a gap. Guess my thread answers his question about the possibility of blowback (i.e. the gap indeed contributes to blowback most likely due to under/overcharged rounds):

http://www.czfirearms.us/index.php?topic=62994.0

[Rmach]

Yeah, it's more gappy. Check out this old thread where the OP even ponders about the effects of such a gap. Guess my thread answers his question about the possibility of blowback (i.e. the gap indeed contributes to blowback most likely due to under/overcharged rounds):

http://www.czfirearms.us/index.php?topic=62994.0

Thanks, interesting read.

[SI VIS PACEM PARRABELLUM]

Just today picked up a 75B Omega. There is a more open area at the rear of the slide which can certainly allow more blow back but I broke the gun in with 400 rnds of my own reloads and had no issues what so ever.

[RNA]

That's great to hear. I loved the Omega and it was accurate as the day is long, but since i train with reloads it had to go. Just make sure to always have your eye protection on.

[Ragnarok]

I would think better ammo might be called for instead of a gun-swap....I notice my Sig P226 9mm has similar if not larger groove under the rear of the slide.

Reminds me of buying another car 'cause the gas-station you use has bad gas!

[1SOW]

RNA,  I shot and talk with an Omega owner today who really likes his pistol.   He said his  DA 7#  SA 3.3#   Something doesn't add up.   

[RNA]

I absolutely loved the gun EXCEPT for the few instances of being spit at by blowback. With my eye protection on it was no biggie, but still didn't like the idea of not being able to train with cheaper reloads. The trigger was good and the accuracy was outstanding, but the missteps with my preferred range ammo was enough to sell it to my buddy for a steal. Poor guy is broke as a joke so i gave him the gun (which he absolutely loves) with a family discount.

[1SOW]

Sorry it didn't work out for you,  but sounds like it went to good cause.

[Tim_B]

Well, I'm glad I'm not the only who has had this happen.  I was worried for a while.  I seem to get a flame flash out the back of the gun under the slide as it travels rearward whenever I shoot the Remington UMC brand 9mm 115 gr. FMJ stuff that comes in those yellow boxed 250 round packs.  This particular brand is very light recoiling and that fact coupled with the occasional flame out the back makes me think they are using a slow burning powder that still had some specks unburned when the barrel unlocks from the slide during recoil and the unburned specks ignite after unlocking.  When this happens I check my brass and I do notice carbon fouling on one side of the casing like some of you described.  I have not seen this flash of flame happen with hot loads.  I fired a few mags each of the famous Federal 9BPLE 115 gr. +P+ JHP and some Buffalo Bore +P+ stuff just to make sure they functioned in the gun and they all functioned normally.  I have only had the flash of flame out the rear with the Remington UMC stuff.  Never had it happen with Winchester white box or Federal range, target, practice ammo or Aquila.