Otto,
Well done!Nice machine work,better than mine.I was self taught, but had a very poor teacher.You can open up the mold blocks you already shortened.You would just have to make a boring bar to fit in the block.Centering them in the 4 jaw or faceplate will likely take more time than the actual machining.You may have to shorten the blocks again to stay at 275gr,but I wouldn't think it would be worth the bother for 2 or 3 grains.Ross Seyfried always gives good advice on loads, but I have really good luck also with 5744 in this class cartridge.I use kapok with other powders,but don't need it with 5744.
Mike
