Interesting dilemma...pulled boolit from loaded round; gas check stayed in case neck.

[Krag1902]

I've had this happen. If I can't tip the check and grasp it with a forceps, I've shot them out in the garage. Make double sure they don't get stuck in the bore. I haven't had that happen but it could.

[brstevns]

Can always size the neck up a little and they will fall out. I expand some 223 up to 6mm and then back down.

[Petander]

I've had this happen. If I can't tip the check and grasp it with a forceps, I've shot them out in the garage. Make double sure they don't get stuck in the bore. I haven't had that happen but it could.

Yes very good to make sure they fly out.

Look at the pic I posted, the checks got a hexagonal shape when fired.

1) Do they clean the barrel ?

2) Is my barrel an early polygonal attempt ?

[Petander]

My O.30 mm (.012") check comes off when pulled, 0.40 mm (.016") stays on.

And thicker ones have slightly larger diameter after sizing, they are .312" vs .3115". My Lyman sizer says .311".

[Petander]

One slipped by, unnoticed, luckily the decapping pin found it.

Good because I don't like the idea of shooting one floating around with powder.



I'm still not sure why I jumped into this gas check wagon. Takes quite a bit of time, money and effort. I guess the catch is being self-sufficient.

But I shoot plain base bullets in many calibers above 2000 fps just fine. Now this 30 cal is quite a colourful experiment. Maybe I just over-estimated PC as a fix-for-all.

[Krag1902]

Yes very good to make sure they fly out.

Look at the pic I posted, the checks got a hexagonal shape when fired.

1) Do they clean the barrel ?

2) Is my barrel an early polygonal attempt ?

There is no reason to believe that the short gas check should follow the bore "point foremost". It probably drug through the bore giving it a flat sided appearance. Bet you couldn't duplicate it at will.

[Petander]

There is no reason to believe that the short gas check should follow the bore "point foremost". It probably drug through the bore giving it a flat sided appearance. Bet you couldn't duplicate it at will.

There's a duplicate in the pic already.

All half a dozen fired are like that. Very even hexagonal shape.

When I got the rifle, looking through the barrel against light there was a round hole. Now after ten copper brushes and 1000 VFG wads ,the hole you see is now hexagonal.

Seeing those hexagonal checks made me think of a possible cleaning / scraping effect.

[Conditor22]

I think everyone has had this happen and freaked out a little

I push one edge of the stuck GC with a small screwdriver, grip it with a stiff tweezer (you may have to work a little to get the GC sideways to grip it) slide the open tweezer in, pinch, and pull.

you can leave the screwdriver in there and shake out the powder if that makes it easier for you