Wondering ?????

[John Taddeo]

Would it be safe to say the weakest point in the illustration is the beginning of the forcing cone ???

[John Taddeo]

And by legnthening the chamber you would change the angle of the forcing cone..

[Dean Romig]

Originally Posted by John Taddeo

And by legnthening the chamber you would change the angle of the forcing cone..

Yes and Yes to both questions and by lengthening the straight wall of the chamber deeper into the ever decreasing taper of the outside of the barrel you are negating the safe wall thickness of the barrel that the manufacturer had built into the gun when filing the barrels to the safe taper they were made with.





.

[Drew Hause]

A better question is what is the safe wall thickness where the pressure peaks?

All pressure - distance curves





1 1/8 oz 1200 fps modern powders, recognizing that Unique is slightly modified "Infallible". Unique and Green Dot were equivalent.