Patches and porting?

[rmk]

Greeting... I am curious as to what you all know about the effect of porting, as in the ported Guide Gun, on patches. Your thoughts and experience would be Appreciated. Thanks, Mike

[.22-5-40]

Hello, rmk.  No experience, but it seems to me since others have had leading problems with ported brls., those sharp edged holes would do a good job shredding the patch?

[rmk]

Thanks for the reply .22-5-40. Yes I was worried about just that but had hopes that someone would pipe up and tell me how silly my concern was. I was not aware of the issue with lead being shaved but it seems that, if that's so then paper would surely suffer. On the other hand I wonder what practical difference it would make to the performance of the patch ie: would it effect the bullet's flight? Thanks again Mike.