houlsby Posted August 3, 2013 Report Share Posted August 3, 2013 Anyone done anything with this setup? Saw these heads in the shop marked for use with my gun and HAD to try them out. Just wondered if any guys on here had loaded these up for varmints or long range stuff? Quote Link to comment Share on other sites More sharing options...
remmy1100 Posted August 3, 2013 Report Share Posted August 3, 2013 what twist is your barrel Quote Link to comment Share on other sites More sharing options...
BooBooEH Posted August 3, 2013 Report Share Posted August 3, 2013 (edited) I have used 1000's of 69 and 77 Matchkings in CSR. Both are great bullets, but you need at least a 1 in 8 twist or faster to shoot them (you MAY get away with 1 in 9 for 69, but it all depends upon YOUR barrel???). 69's are good for 100 - 300, whilst 77's rule out to 600. As for longer, well I have a shooting buddy who rather annoyingly occasionally wins F Class with the 77 out to 1000, no wind permitting!!! Whilst I currently use Acc 2520 in CSR (high 23's), sound alternatives are N140 (circa 24) or TAC (less). Both Acc and TAC are ball powders so work well through a progressive. CAUTION - work up your own loads - start 10% below max and work up slowly looking for pressure signs. Load both to a mag length of 2.26 if using a straight pull. Sierra produce a load chart for both AR15 and bolt gun - google them. Sierra do not advise using Matchking on live quarry (unless you happen to have two legs for which the americans load a 77 SMK cannelure for military use). Any more then PM me. Simon Edited August 3, 2013 by BooBooEH Quote Link to comment Share on other sites More sharing options...
houlsby Posted August 3, 2013 Author Report Share Posted August 3, 2013 I'm using a 1 in 9 tikka m55 with 24" barrel. Sounds like it may be an idea to leave anything heavier to something with a faster twist, ill give them a go tho. If I can't get them to work I can always put them in the subsonic pile and see If I can throw sme more powder in. Quote Link to comment Share on other sites More sharing options...
BooBooEH Posted August 4, 2013 Report Share Posted August 4, 2013 I could never get the 69's to work in my Tikka 595... but that is probably a 1 in 12 twist. See how they shoot! Quote Link to comment Share on other sites More sharing options...
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