Pacific Tool and Gauge bolt heads

[Ratbuster]

I put one on my target action( 6.5x47 ) and model 12 bvss .223. I had cratering on primers with both rifles. The cratering went away on both rifles when I installed them.

Same for me...cratering with the stock .223 bolt head was eliminated with a new PT&G head

[Newbe]

Same for me...cratering with the stock .223 bolt head was eliminated with a new PT&G head

I'm also fighting this with my V11 .223

I've modified the firing pin a little (flattened the tip a bit) and though it has helped, there is still some flashing around the firing pin indentation on the primer.

I'm on the fence as whether to pursue the pin modification, or get a PT&G bolt head. I hadn't heard of the headspace changing till reading this, but it makes sense I guess.

[Steelhead]

I'm also fighting this with my V11 .223

I've modified the firing pin a little (flattened the tip a bit) and though it has helped, there is still some flashing around the firing pin indentation on the primer.

I'm on the fence as whether to pursue the pin modification, or get a PT&G bolt head. I hadn't heard of the headspace changing till reading this, but it makes sense I guess.

Original my 11 hunter cratered and occasionally pierced every load.
Now its GTG with the PTG bolt head.

What primer?
CCI400?

[Newbe]

Original my 11 hunter cratered and occasionally pierced every load.
Now its GTG with the PTG bolt head.

What primer?
CCI400?

CCI 400

I know I can switch to a different primer (BR4 or magnum) and the flashing will decrease or go away, but that's not really fixing the problem. These are not hot loads by any stretch.