![]() ![]() That way when you mix and match you can be safer in your COAL I.E. Hear is a neat link for playing with mix and match bullets and knowing bullet lengths But if not you will want to shorten them. ![]() ![]() If what you have already made up will do that, great. Somewhere between the last length it stuck and fell out is max length. Bump the length down a few thousandths at a time until the round drops out of the chamber under it's own weight. If you pull the bolt and insert the now made dummy into the chamber with finger pressure, it should stick because it will be jamming into the lands. Use this as a starting COAL to make a dummy round. Insert a bullet upside down in the case and measure. If you take the expander out of your sizing die and size a case this will have a neck opening around. You can get a good idea of max cartridge length without any special tools. 020 less bullet in the cartrige if seated to sierra COAL I have a good supply of that powder so with 10gr I can get a LOT of rounds loaded.ġ50gr UMC's, 208 A-max and 220gr Interlock: FYI- bullet stability is based on bullet length, not weight. In the 300 blackout, you need a 1:8' twist for the 208-220 grain bullets to stabilize. If you work up a subsonic load, start high and work down. I will be using (or starting around/at) 10gr of IMR 4227. 308 Subsonic loads Lapua case 2.005' Hornady 220 GN Round Nose Interlock Hodgdon Trail Boss 14.1 GN CCI LARGE PRIMERS OAL 2.735' TIKKA T3 TACTICAL 24'1:11 TWIST SEA LEVEL 83 FARENHEIT SPEED CHRONO 10FT 1.1082 FT/S 2.1102 3.1098 1/4 MOA AT 100Y HORNADYS 178 GN ELD-X LAPUA CASE 2.005' TRAIL BOSS 10.1 GN OAL 2.800' 1.1070 FT/S 2.1062 3. A 190 bullet would also work, if it's a flat base and lead soft point. Looking to be 0-150y max distance so I'm thinking I'll sight in at 100y once dialed in. There may or may not have been some shenanigans that happened at the range but everyone was safe and no UN helmets were injured.Īnyway, I hope to see how these 220's preform and I hope that I can find a nice barrier skirting powder charge that will give reasonable results. I plan to mainly run subs through this rifle and it has me interested in it as nothing more than a range toy. Upon removal of the can, I had a nice vertical POI shift. The factory rounds with the suppressor shot like this: I went out today and did some preliminary sighting in with 150gr supersonics and achieved some reasonable results for factory ammo. I told him when he decides to sell, look my way, and he did. I'll be working through this week making some 220gr Hornady Interlocks to feed the Ruger Ranch that I "stole" from a local member. ![]()
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