New Reloader - Reloading Workflow Sanity Check

[LRRPF52]

A problem with seating to the max magazine-allowable COL is that as the cartridge stack builds, the case taper compounds and now that max COL is actually shorter because of the angle formed by the case head to the tip. From a basic mechanical engineering perspective, the cartridge feed gets hung up inside the walls of the magazine. I learned that the hard way once with .308 Winchester loading 155gr Scenars as far out as possible. They would load and feed up to 15 rounds in a PMAG, but not any more after that. The first cartridge would wedge down there, locking up the magazine.

I tested this out before the competition started just to see how many rounds could be loaded, and I'm glad I did before shooting any of the stages because it could have meant us not placing 2nd like we did (Military 2-Man Team Sniper Competition overseas).

What you're seeing with the gas port could possible be a bur that broke off when the port was cut. This is pretty common. Some of the rifle builders have techniques to mitigate this, while most don't pay much attention to it.

Definitely eliminate that interference between the gas block and the attachment hardware inside the handguard.