usmc1974 Posted December 22, 2014 Share Posted December 22, 2014 (edited) what do you think is the best twist in a 20 barrel for a 69-75 grain bullet for 1000 yards Edited December 22, 2014 by usmc1974 Link to comment Share on other sites More sharing options...
fishsticks Posted December 22, 2014 Share Posted December 22, 2014 Some good information in the first post here: http://thefiringline.com/forums/showthread.php?t=530927 Link to comment Share on other sites More sharing options...
DWFAN Posted December 22, 2014 Share Posted December 22, 2014 7 Link to comment Share on other sites More sharing options...
g mac Posted December 22, 2014 Share Posted December 22, 2014 1 in 7 Link to comment Share on other sites More sharing options...
dauntedfuture Posted December 23, 2014 Share Posted December 23, 2014 1-7 or 1-6.5 you will be wasting time at 1000 unless you try a 80g or VLD type of bullet. 80g sierra is the marginal minimum for 1000. You are much better with a VLD bullet and lots of powder. Sorting cases and bullets will be critical. Good luck. Link to comment Share on other sites More sharing options...
magpulled Posted December 25, 2014 Share Posted December 25, 2014 6.5 will spin one pretty good for 1k. U need at least a 7 I would think tho Link to comment Share on other sites More sharing options...
bushmeat Posted January 31, 2015 Share Posted January 31, 2015 what do you think is the best twist in a 20 barrel for a 69-75 grain bullet for 1000 yards Link to comment Share on other sites More sharing options...
bushmeat Posted January 31, 2015 Share Posted January 31, 2015 Would have said use a 90SMK in a 6.5 twist but now that the 77 Tipped MatchKings have come out, I think you could get to 1000 with a 7 or 8 twist. Link to comment Share on other sites More sharing options...
dauntedfuture Posted January 31, 2015 Share Posted January 31, 2015 77 TMK has a BC of .420, same as 80g SMK. You can drive the 80 faster as you can get more powder in the case. You should look at 80-90G VLDs if you are serious. At the end of the day, .223 is really pushing it at 1K no matter what you do. Link to comment Share on other sites More sharing options...
azfred Posted February 2, 2015 Share Posted February 2, 2015 mine is 1-7 Link to comment Share on other sites More sharing options...
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