Mr.Coffee Posted March 30, 2020 Report Share Posted March 30, 2020 So I have an AR10 80% that I built I have finally gotten everything together and working. I wanted to make sure that it would cycle rounds so I loaded a magazine with some snap caps (dummy rounds) pull the charging handle back and it loads the first round perfectly then i pull the charging handle back and let it go as fast as i can, the first round ejects and second round loads everything worked great. Then i try to pull the charging handle back one more time to clear the round and it wont budge. I did some research and found how to get the bolt unstuck by pulling the charging handle and slamming the stock against the ground. I'm not sure whats happening it looks like the bolt isn't returning to the proper position when the second round is pushed in. Is this something that will be rectified when i shoot live rounds? or is this a malfunction that I need to deal with beforehand? Quote Link to comment Share on other sites More sharing options...
unforgiven Posted March 30, 2020 Report Share Posted March 30, 2020 If it's a collapsible stock unload,close the stock. If it an A2 type rifle stock, check for clear you can put a piece of wood on the ground. Grab the charging unlatched other hand on the handguard. Drive into the board sharply. Don't pinch your fingers 😉 Quote Link to comment Share on other sites More sharing options...
Albroswift Posted March 31, 2020 Report Share Posted March 31, 2020 I tap towards the rear on the charging handle with a small rubber mallet when I get one stuck. Haven't seen any detrimental effects from the procedure. Slamming the butt down does use the mass of the BCG to advantage but the little mallet doesn't frighten the other members at the range like banging the rifle up and down could. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted March 31, 2020 Report Share Posted March 31, 2020 Hahaha bang the damn rifle. Hahaha Quote Link to comment Share on other sites More sharing options...
DNP Posted March 31, 2020 Report Share Posted March 31, 2020 It’s called mortaring. You make it sound so cavemanish with the “banging”. It’s a technical procedure. You could always go Jim West style and bash it with a rock. Quote Link to comment Share on other sites More sharing options...
Mr.Coffee Posted April 1, 2020 Author Report Share Posted April 1, 2020 I guess i should've been more specific i am wondering WHY this is happening i already know how to fix it but why is it locking like this, is it because of the dummy rounds or an actual issue with my rifle? Quote Link to comment Share on other sites More sharing options...
unforgiven Posted April 1, 2020 Report Share Posted April 1, 2020 When it happened to me it was with an empty case, locked up tight. Rifle worked fine before and after. Quote Link to comment Share on other sites More sharing options...
392heminut Posted April 1, 2020 Report Share Posted April 1, 2020 4 minutes ago, unforgiven said: When it happened to me it was with an empty case, locked up tight. Rifle worked fine before and after. Empty case=fired case brother. If it wasn't resized yet that would explain that. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted April 2, 2020 Report Share Posted April 2, 2020 Exactly right expanded brass... that was my mistake. Got it on the second stroke can't be shy or it ain't gonna happen. Quote Link to comment Share on other sites More sharing options...
shooterrex Posted April 2, 2020 Report Share Posted April 2, 2020 Lube it up good and shoot it. My 2 pistols I built were like that for about 50 rounds. All good now. Quote Link to comment Share on other sites More sharing options...
Sharpshooter Posted April 2, 2020 Report Share Posted April 2, 2020 Oooh, sounds like more lube is the answer to a lot of sticky issues! Quote Link to comment Share on other sites More sharing options...
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