AR started doubling

[Tim K]

It's a Bushmaster with a Timney trigger. Just began to shoot doubles. I assume it's a trigger problem. Am I right?

[DFBrews]

gunked up firing pin channel? reloads or factory if reloads what kind of primer?

[esaabye]

I have had this happen with a bad trigger job, also once when my trigger group got dirty. In the first case it was a new trigger, in the second a good cleaning did the trick.

Also had a problem once with a RR trigger not playing well with a light carrier (the cut shroud ones) and it would not fully reset the trigger, so the hammer was not captured and would follow the bolt back.

[Tim K]

gunked up firing pin channel? reloads or factory if reloads what kind of primer?

It's probably clean, but that's a good thought. I'll check.

Ammo was my standard reload out of my Dillon 650. I'd have noticed if primers were high if that's what you were driving at.

[DFBrews]

It's probably clean, but that's a good thought. I'll check.

Ammo was my standard reload out of my Dillon 650. I'd have noticed if primers were high if that's what you were driving at.

I am by no means an expert but I had the same issue had crap in the channel when i was seeing how long the gun would go without cleaning and it would double/ triple on my reloads but not factory or factory reman and I was using rem 7 1/2's

[Great-Kazoo]

It's a Bushmaster with a Timney trigger. Just began to shoot doubles. I assume it's a trigger problem. Am I right?

Back off on the hex screws a little then try again. This is one of those thing you need to adj at the range, ONLY load no more than 2-3 rounds at a time, for a number of reasons.

[One Shot]

My father had Timney Trigger that was doubling. This was a brand new trigger. He called them, they said it was a known problem and sent him a new one next day.

[SideShow Bob]

Delete this thread ASAP ! And get your rifle to a gunsmith immediately. The alphabit guys troll these forums.

[00tec]

Delete this thread ASAP ! And get your rifle to a gunsmith immediately. The alphabit guys troll these forums.

I tend to agree.

[MarkCO]

The floating firing pin combined with all the other variables can result in some doubles here and there.

Timney triggers, XP buffer springs, low mass buffers, extra-mass buffers, Federal primers, brass shavings in the FP channel. VERY solid bracing, like bags or a lead sled can also induce doubles.