New Build, persistent jamming
#4
The OP's first paragraph referenced "bullets" but it appears from the rest of the discussion that the OP is discussing the cartridge or a fired case.

Picking up on what Klem wrote, are you using factory ammunition in these functional checks? (Smarter than using reloads.)

Try coating the entire case with a dark magic marker and then chamber and eject the unfired case. There should be marks where the case and chamber fit is too tight.

I had this problem with my 20 Grendel wildcat. I found marks where the body and shoulder meet. Bumping the case a bit more during resizing solved my problem.
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Messages In This Thread
New Build, persistent jamming - by Eye_guy - 07-15-2023, 09:01 PM
New Build, persistent jamming - by Klem - 07-15-2023, 11:36 PM
New Build, persistent jamming - by Eye_guy - 07-16-2023, 04:15 AM
New Build, persistent jamming - by JASmith - 07-16-2023, 04:21 AM
New Build, persistent jamming - by Klem - 07-16-2023, 05:26 AM
New Build, persistent jamming - by just_john - 07-16-2023, 04:31 PM
New Build, persistent jamming - by montana - 07-16-2023, 07:20 PM
New Build, persistent jamming - by Eye_guy - 07-16-2023, 07:53 PM
New Build, persistent jamming - by lazyengineer - 07-16-2023, 08:54 PM
New Build, persistent jamming - by JASmith - 07-16-2023, 09:17 PM
New Build, persistent jamming - by montana - 07-16-2023, 09:22 PM
New Build, persistent jamming - by lazyengineer - 07-16-2023, 10:10 PM
New Build, persistent jamming - by Klem - 07-16-2023, 10:55 PM
New Build, persistent jamming - by VASCAR2 - 07-17-2023, 02:41 PM
New Build, persistent jamming - by jasper2408 - 07-17-2023, 04:06 PM
New Build, persistent jamming - by Zeneffect - 07-18-2023, 05:04 AM
New Build, persistent jamming - by Bonas - 08-05-2023, 03:23 AM

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