I fired my Polish M44 with the sewer pipe bore for the first time today. I used Wolf 148 grn non-corroseive ammo prepped for fire lapping with a Wheeler kit. The bore cleaned up some but the last inch or so at the muzzle is void of rifling, maybe counter bored. I never did get it to group, possibly because I didn't extend the bayonet. I also fired my newly acquired Russian M44 with laminated stock, very good bore. These rifles are a lot of fun to shoot but addictive. I pick up a Hungarian M44 on Thursday. Another trip to the range next week. Good thing I bought a no-go gauge.