Thumper

If anyone is wondering why I keep going back and forth between 2 names, I am having a heck of a time logging in. It keeps locking me out and I have to reset my password every time. I've contacted the admin about it but haven't heard back. pretty frustrating.

The diameter of the hole is a tight .086 measured with the shank end of a # 44 drill bit.

I started out with Hornady 155gr Amax, then I found this problem I'm having. I've shot Remington, Winchester 7.62X51, Federal, American Eagle (Federal), and hand loads. Hand loads are Hornady match cases, WLR Primers, 39.9g Varget, 168gr SMK's. All .308 rounds except the Winchesters. I wouldn't have switched up ammo if I wasn't looking for the resolution to this problem. Everyone I talked to said to change up the ammo and magazines, so I did.

I had a non-adjustable on it at first, changed it last week to an adjustable. That's been checked by eye and air.

New to this (or any other) Forum. I'm looking for some advice on what to do about the function of my rifle. Here is what I put together: Aero Precision lower Gibbz Arms G10 Upper FailZero BCG Ballistic Advantage Heavy 1:10 20" Barrel GunTec MilSpec Buffer Tube Kit Rise Armement 3.5# Trigger Adjustable Gas Block Etc... The rest of the parts are Daniel Defense, Magpul, Nikon, and so on. It shoots wonderful, sub MOA gun. However it will not lock the bolt back on a empty magazine or pick up the next round on a full mag. I have tried adjusting the gas block from not ejecting to just shy of all the way out. I have tried 5 different brands of ammo plus some loads I made up for this gun to start developing, and 3 different magazines. Any advice or other suggestions would be greatly appreciated.

I'm going to jump on this train knowing it's an old thread but I have kinda the same issue. Brand new build. It will eject every fired case but will not pick up the next round and will not, has never, locked the bolt back on an empty magazine. Just installed an adjustable gas block and went from 2 turns out to almost 5, which later I found out after 4 is useless. I've tried 3 different magazines, Hornady, Remington, Winchester, and Federal ammo, and today used some loads I had made up for it, Hornady cases, 168SMK 39.9gr Varget. Still the same result. Changed buffer spring and tried adjusting gas block again, no change. I ordered a JP Silent Capture Spring Buffer today, Hoping, but skeptical. Any input is appreciated. Thanks.