Thread: YALDIZ SINGLE SHOT .410 - LIFESTYLE BLOCK

Originally Posted by Marty Henry

I've never really got them to blow out properly especially the last third. What's your secret. My best were annealed then run a 9.3 sizing button through 40 grains of 2 f and a tight packed wad of paper towel. I'd like to have another go as I've got heaps of spare 303

The secret is firing them vertically. Fast pistol powder like Red dot or bullseye and couscous or similar packed in with toilet paper. It seems to avoid balloon head or side bulges.