Team.
How do 2 groove barrels handle paper patched bullets?
I want to try patching a .30 cal bullet for my .303 Pygmy with the .317 groove diameter 2 groove barrel. I figure .310 bullet and 2 wraps will give me a .318 patched bullet.
As the bore land area is 5/8 of the surface area and the grooves only 3/8 I wonder if paper patched bullets will function.