@hj Yeah but if they don't stick to the print, then you should be able to peel them off by hand. For some of the more convoluted prints, I upped the horizontal distance to 120% of shell.
Ian McCollum posted a video on SVT-40, talking about its seminal gas system, among other things, but he neglected to mention one of its most unusual features: the barrel has no gas port. The front part, which includes the gas diverter and the set for regulator, front sight tower, and the muzzle brake, is made in one piece, and attaches to the actual barrel as a muzzle device. Heck I think it's not rifled.
The gas port phobia around the 1930s was a real thing, and that is why early Garands and G.41 had gas traps. But in case of SVT-40, there's no trap as we recognize it, only a barrel extension.
Also! Every time someone talks shop on a forum, we always have the weak-minded come in with "but the barrel is not preeeeeeented", "but my AR is so much cheeeeeeper". Look how scared the 3D made them. Print more guns!
@Rocc I am not Jerry Miculek, but I think that the only time you need to account for height over bore is when aiming for the head A zone at closer than 10 yards.
@Rocc I heard the factory Beretta 92 is the worst. They raised the mount up in order to leave room for the striker block that pops up from the top of the slide when trigger is getting pulled.
@Rocc Back in WW2, babushkas knitted mittens with a separate index finger and sent it to the front in care packages. Mosin and PPSh never had any mitten flaps!
@mu@Rocc My main rifle is SU-16 and my daughter's rifle is an AR on KP-15 receiver, neither of which has a mitten flap. Of course, we live in a place where it rarely snows, so we get by with gloves.