Should Ammo Be Scratched After Cycling

[Maxpower]

Hello.

I have a 2nd gen Glock 22 and if I cycle a round through it without firing (I hope these are the correct terms) it the casing always comes out with a line on it, like it was scratched. I have put 80 rounds through it and have had one FTE. I have tried this with both Blazer and Federal. Is this normal? On the Federal you cannot feel the scratch. I don't remember if I could on the Blazer or not.

Thanks.

 

[JayD]

Generally speaking No. It could be from the extractor as the slide cycles. Is a scratch on every round? Have you tried using a snap cap and see if it scratches any paint off of it?

 

[Maxpower]

I have never tried a snap cap, and honestly I am not sure what that is. Off to google.

 

[01SVTvert]

Scratched where? The extractor could be scratching the case rim when you hand cycle?

If you cannot feel the scratch is it from the round underneath it when the round is fed into the chamber making a slight mark on the case where they contact each other? (if that made any sense)

 

[Maxpower]

I have not tried a snap cap. I have the Blazer shells from the range (they did not have a bucket for aluminum, just for brass) and they have the scratches on them, but not as noticeable. I tried to take a pic with my phone camera but it is hard to make out. I put on scratch on one and cycled it again. If I am looking at the back of the round, it seems to happen somewhere between 11 and 12 o'clock.

 

[Maxpower]

If you cannot feel the scratch is it from the round underneath it when the round is fed into the chamber making a slight mark on the case where they contact each other? (if that made any sense)

It could be. I am new to shooting so I am still learning.

 

[daveyburt]

can you see any brass/aluminum filings on the firearm - barrel chamber? extractor? ejector?

is it a new mag? -filings/marks in the mag?

 

[Maxpower]

I have not seen any filings. I am not sure if the mags are new or not but it happens with all 3.

 

[OnTheRoad]

I'm thinking feed lip scratches? Do they go the full length of the case or start partway back? Feed lip scratches will usually start partway back since the front of the casing is exposed and only the back half or so is held by the lips. Under safe range conditions, lock back the slide and manually insert an unscratched round into the chamber. Close the slide, cycle out the round and see if it's scratched.

You may also want to try making a mark on the base of the cartridge with a Sharpie and insert the round with the mark at 12 o'clock. Cycle it and see where the scratch is in relation to the indexing mark. This could point you towards something on the feed ramp or a burr in the chamber.

 

[60 buckscash]

If you cannot feel the scratch is it from the round underneath it when the round is fed into the chamber making a slight mark on the case where they contact each other?

or feed lips has my vote.

 

[PixelPusher]

Feed Lip.

I get those from my Glock

 

[Maxpower]

Did the sharpie thing. I would say it is at about 1130. The scratch goes the entire length of the case. Cause for concern? Thanks.

 

[ArmySGTPM]

My glock 22 does the same thing...don't have an answer to why, but the reasons explained seem reasonable

 

[ArmySGTPM]

just tried it again....sharpie technique, mine scratches right at 12 pretty much...maybe just to the left i wouldn't be concerned though my rounds have all still fired fine not problems minus failure to lock back with some weak walmart ammo

 

[Maxpower]

Cool. Glad to know mine isn't busted. Thanks for the responses.

 

[Rob Boudrie]

Watch the overall length. A round can get set deeper in the case from cycling, resulting in excessive pressures. If your stripper rounds starts to shorten up, replace it.