Just now found the intro page - I've already made a few posts. I'm an old engineer (slide rules and sine tables, R&D team for dirt, etc.) who likes fixing and modifying things. I spent nearly 2 years, off again and on again, converting my 1022 into a decent squirrel gun. Took it from a 6 in. group at 30 yd to a 3/8 in. group at 50 yd. Then I found RimFireCentral. If I would've found them first, I could have saved myself a lot of time. I love this stuff, and just now remembered a trick for Mark II pistols. I'm going there now. Nice to meet you all, and I look forward to many fine discussions.