Off the shelf bolt .223 75g amax&77g otm
Well after reading a fair bit of Brian Litz stuff and running some numbers I have come to the conclusion my Browning A bolt .223 with 1:12' twist is no good. Federal AE223 ballistic tip 50gr twist rate works out at approx 1.14SG, Hornady 55gr Zombie max 1.09 SG. Shoots average groups with both as expected I guess. Winchester 55gr psp 1.62SG and shoot very well. I now want to shoot the Hornady amax 75g and or the Berger 77gr OTM and am looking at a rifle that can shoot them. 1:9" barrels will all come up at less than 1.5 SG which I'm aiming for (blame Brian for that) So a savage is quite likely not the best option. 2 Bolt actions do meet the requirements. Tikka T3 1:8" about $1200 and needs the magazine modded to get near the lands and the Ruger American $520 1:8" also needs mag mod but I see they can be made to fit 2.5" COAL. Don't want to build a rifle as barrels are $500 upwards in Aussie. Im really pushing towards the Ruger at half the price. Really like my M77 .308. Its not really about the budget its mainly finding a rifle that meets the requirements. And I don't really like the feel of the Tikka (the ONLY reason I would contemplate buying one is the 1:8" twist) Purpose of rifle is hunting and target. Local army range they shoot 500-800yds every weekend.
Any other options? Intelligent input into this please.
260 Remington Savage 16FCSS
223 Remington Browning A bolt II
12g Akkar Churchill U/O
308 Winchester Ruger M77