CZ 10 Round mag Question for CZ 457 feeding into Lilja barrel on 1st round only!

p5200 · Saturday at 5:53 PM

I ordered one off Ebay. With the Eley Match all 10 rounds chambered fine. The 1st round of SK Rifle Match hangs up every time and doesn't go in the chamber. Anyone else have this problem with the 10 round mags using certain ammo brands? Thought, maybe after some use it might clear up after spring break-in. Thanks!

Emerson0311 · Saturday at 6:35 PM

p5200 said:
I ordered one off Ebay. With the Eley Match all 10 rounds chambered fine. The 1st round of SK Rifle Match hangs up every time and doesn't go in the chamber. Anyone else have this problem with the 10 round mags using certain ammo brands? Thought, maybe after some use it might clear up after spring break-in. Thanks!

I’ve noticed that some brands are very slightly longer and get hung up in my mag often. Maybe not your situation.

p5200 · Saturday at 7:35 PM

Does sound possible!

125 Straight · Saturday at 7:45 PM

I have this exact problem with Eley Tenex. I switched to the L3I billet 13 round mags.

Jgore · 2025-09-07T19:52:11-0400

Sounds like the head spacing is set for Eley. I had to change the head space when I switched from SK ammo to R50 back in the day.

p5200 · 2025-09-07T23:51:02-0400

I set it at .042 hoping it might work with several brands which, it does. The 5 round feeds everything so far, a lot I haven't tried yet though!

p5200 · 2025-09-07T23:55:56-0400

125 Straight said:
I have this exact problem with Eley Tenex. I switched to the L3I billet 13 round mags.

I might have to try one of those.

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CZ 10 Round mag Question for CZ 457 feeding into Lilja barrel on 1st round only!

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