Maidment78 Posted August 28, 2020 Report Share Posted August 28, 2020 Good morning, Just wondered if anyone was using these? We are having a build made and these are the chosen heads, had to get a 6.5 twist barrel but I was wondering if anyone has had any joy with them? P Quote Link to comment Share on other sites More sharing options...
Scrumbag Posted August 29, 2020 Report Share Posted August 29, 2020 Can’t help I’m afraid but sounds interesting Quote Link to comment Share on other sites More sharing options...
blackburnbuccaneer Posted August 30, 2020 Report Share Posted August 30, 2020 I have been using them almost exclusively in my .223 for the last 4 years or so shooting FTR with pretty good results - as long as you are prepared to do some leg work in terms of research and load development you should be able to get them to shoot pretty well - and out to 600 yards they will give most .308 shooters a good run for their money especially those using 185gr or less bullets! I would say the most critical thing with the 90's (or any of the heavy .224 bullets in .223 really) is having a suitably long freebore to load them so as to not comprise any of the already limited case capacity! In a .223 for the 90's this means a freebore of at least .170" (COAL ~2.650") although I think about .200" is optimal for the Berger VLD (COAL ~2.680"). Also to get good performance at longer ranges the powder charge has to be very consistent as owing to the small case capacity and variation can have a much bigger effect on es and thus elevations! My current barrel is (was as it has just gone off to be replaced) a 28" Bartlein 5R 1:7 .219 x .224 bore (.150" FB) and it is going to be replaced with a 28" Benchmark cut 5C 1:7" to 1:6.8" gain twist .219 x .224 bore (.200" FB) - both are 1.15" for 5" then a straight taper to .96" at the muzzle. One final thing is that at competitive velocities (2800-2850) don't expect brass to last long, the primer pockets will last ~5 firings before becoming too slack. There is a wealth of information from a few shooters on the Accurate Shooter forum on the subject and I suggest you have a look there (where I got most of my information along with Laurie Holland) - also any questions just ask as I have just scraped the surface here! Quote Link to comment Share on other sites More sharing options...
Maidment78 Posted August 30, 2020 Author Report Share Posted August 30, 2020 Thank you for that, I am really looking forward to this project. Quote Link to comment Share on other sites More sharing options...
blackburnbuccaneer Posted August 31, 2020 Report Share Posted August 31, 2020 What are you going for barrel wise? Quote Link to comment Share on other sites More sharing options...
Gungrinner Posted September 1, 2020 Report Share Posted September 1, 2020 Put the newer Berger 85.5 gr Long Range Hybrid Target Bullets and the hornady 80 gr eld match. Both shoot very well out to 600yrd in my sassen barrel. Quote Link to comment Share on other sites More sharing options...
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