Lee

I doubt that you would see the primers trying to squirt out in the Omega or Triumph because the breech block would hold all of that in place. In realityI don't think the the Knight Breech System qualifys for Western as a closed breech either. The Knight bolt really is nothing more than a falling hammer, there is nothing that locks the hammer in place - it is possible to push it back with pressure.

Also remember that I shot equivelent 100 grain loads of T7 and BH in my Model 97 White. Shooting 100, even 120 in it withT7 does not result in the whole primer or the even the primer coming out of the breech plug. But a 100 grains ofBH resulted in the primer cup being pushed back causing the hammer to go back plus the primer was shot completly out of the cup and not to be found in the gun anywhere. The Anvil of the primer was layingloose on the floor of the reciever. Again I attribute this to greater pressure or maybe pressure for a greater period of time -for that particular load (powder+projectile) than is created by T7. I also believe you can attribute that to the faster burning T7 - rises to peak and drops a whole lot quicker than BH which burns progressively and creates pressure for a longer period of time. And certainly the White breech system does not qualify for BH according the Western Standards.

My next experiment when I can find the time is to shoot is a comparision in the Remington 700ML- which I know will shoot BH - but is not a closed breech either. It will be safer than the Whitethough, because I have a copper weather shield on the bolt if the primer were to fly apart as it did in the White.

The other thing that makes think a bit, is the condition of the sabot cups - the BH certainly appears to stress them more than T7 - now is that stress because of pressure or heat??? or both - I certainly do not know.

Has anyone seen any CUP's measurements for Trail Boss as compared to BH. I know the BH information for cartridge shooting is now posted on Western... And I assume the inormation for Trail Boss is posted also - just have not had time to look. I wonder what that comparison might show.