powered took kit. There is the "piston", the 2 rods, the "cylinder", and the washer. The washer has an ID of about .275". the small Rod has an OD of about .270". The large rod has an OD of .750", but it has a little, 1/4" long nipple whose OD is .270". The washer, cylinder and piston are used with both sizes of baffle. If you are making small hole baffles, you use the .270" rod, to spindle the screenwire around. the wire is cut into a rectangle, folded into thirds, and its then spindled. Fold the rough edges of the wire, on one end of the rectangle, back towards the rough edges. Then start spindling from that fold, and have the rough edges on the outside, as you spindle the wire. Then there will be no loose ends in the "tunnel" thru the baffles, cause that's where the bullet will come flying-thru. The bronze screen has to be annealed before folding, or it won't hold its donut-shape after you form it.
the piston has a different hole size in each of its ends. One end is a slip fit around the .270" OD rod, the other end is a slip fit around the .750" rod. Naturally, you use the appropiate end, depending upon which size of baffle you are forming. This info is for academic use only, of course.
You have to "back-up" the small hole baffles with the washer, or the blast will cause the baffle to unravel, blowing the end of the screen into the next baffle, (thelarger ID type) Rifle cans aint that much tougher to build than good 22 cans. The commercial makers are raking you over the coals when they charge you $1000+ for a 223 rifle can.
the piston has a different hole size in each of its ends. One end is a slip fit around the .270" OD rod, the other end is a slip fit around the .750" rod. Naturally, you use the appropiate end, depending upon which size of baffle you are forming. This info is for academic use only, of course.
You have to "back-up" the small hole baffles with the washer, or the blast will cause the baffle to unravel, blowing the end of the screen into the next baffle, (thelarger ID type) Rifle cans aint that much tougher to build than good 22 cans. The commercial makers are raking you over the coals when they charge you $1000+ for a 223 rifle can.