Originally Posted by
54bore
Mike, Do you know what size Lehigh is cutting the Flash Hole in these? The Treso/Ampco’s are a tiny .028 Which works Stellar with Real Blackpowder, But to small to reliably set off the Sub powders.
Great question!!! I will find that out in a few minutes - gotta do a 'honey do' first
But I am betting 0.031???