9mm barrel ramping in a 1911?

[tex_n_cal]

How much of a barrel ramp can one get away with in a conventional barrel? I can find no references to what amount is acceptable. .45's of course you can get away with .080 to .090 of the case head exposed, I assume the amount for a 9x19 barrel is less.

The gun is intended for factory equivalent loads only, no +p+ or pseudo-major loads!

Thanks!

 

[stans]

Hmmm....good question and I do not have a firm answer. I know that 0.090" is the maximum you want to expose in 45 ACP and 10mm. I would hazard a guess that you would have to have at least 0.060" exposed just to get reliable feeding, just like the 45 and 10.