willbird Posted February 5, 2023 Author Report Share Posted February 5, 2023 Got started on barrel contouring :-). Quote Link to comment Share on other sites More sharing options...
Armed Eye Doc Posted February 5, 2023 Report Share Posted February 5, 2023 4 hours ago, willbird said: Got started on barrel contouring :-). Thanks for the update. Quote Link to comment Share on other sites More sharing options...
willbird Posted February 8, 2023 Author Report Share Posted February 8, 2023 (edited) Got contour done. Did not get fancy with any tapers, ended up 2lbs 7oz so 7oz heavier than the Faxon 18" pencil Next is gas port, I bought a 5C indexer and ordered a tailstock to match it so that should be here tmw maybe. Edited February 8, 2023 by willbird Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 9, 2023 Report Share Posted February 9, 2023 That's gorgeous, brother - very well done! Quote Link to comment Share on other sites More sharing options...
willbird Posted February 11, 2023 Author Report Share Posted February 11, 2023 (edited) Lubed everything really well, not submerge in a vat of mobil 1 well, but poour on the CLP well :-). Started with gas port at .07....first round was in a fire formed case and at 44.0 of H4350 and an 87 vmax, bolt locked back. Tried 45.0, and 46.0...saw a bit of ejector mark at 46 so just held there for now. QL says 55468 PSI at 46 but of course that is all theoretical. Tried 3 rounds in mag at .07 and did not feed. went up in sizes roughly .005 at a time .076 .081 At .086 fire forming rounds feed and eject 100%....not throwing them far but feeding and ejecting. Theory with fire forming is that some velocity is lost forming the case. Rounds loaded in fire formed brass eject with a bit more velocity on the ejected brass. I am going to run it there for a bit and see. Did not setup crono, was not trying super hard for accuracy but 5 shot groups were looking like MOA or so. 1/2 gallon milk jug was at 75 yards and half milk and half water, bullet impact made a heck of a WACK :-). Edited February 11, 2023 by willbird Quote Link to comment Share on other sites More sharing options...
willbird Posted February 11, 2023 Author Report Share Posted February 11, 2023 OAL was 2.710" with 87 vmax. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 12, 2023 Report Share Posted February 12, 2023 VERY COOL!!! Quote Link to comment Share on other sites More sharing options...
willbird Posted February 14, 2023 Author Report Share Posted February 14, 2023 Picked up a 500 pack of blem Sierra 80 grain Blitz from Powder Valley...they should work well in this setup. They give up a bit of BC to the 87 VMAX but at 300 yards that works out to another 1.5" of wind drift in a 10mph so no big deal....well it is always a "deal" but I can live with it LOL for 20 cent bullets. Quote Link to comment Share on other sites More sharing options...
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