Regular, medium, and high pressure breech plugs

[Procross]

Ho do you know the difference? I purchased McGowen barrel thru Woodman, I never asked what I wanted, it does have a a carbon insert at the front, barrel side.

 

[LHR]

Which does yours look like?

 

[LHR]

The low and medium look the same on the outside, the difference is the length of the flame channel inside the primer pocket.

 

[Procross]

I have the carbon looking insert, its hard to tell length of channel so I have either med or high

 

[LHR]

Notice the hole size here, the high pressure carbon one is a lot smaller (.035") than what you see here.
It sounds like you have the high pressure kit.

 

[Procross]

Thanks again