Thread: 223 with 65gn SGK's AR2219??

Hello Guys

I've been playing with 65gn projectiles in my 1:9 twist Howa mini. So far I've tried W748 and AR2206H. The following loads may be hot in other rifles - work up from at least minus 10% like I did!!

After an initial test the 2206H looked most promising with 3 shot groups from 16mm (only one like that) to mostly round the 30mm mark. Velocities with 2206H have been right up there with 3000 fps not a problem (highest I went was 3045 average with nary a pressure sign).

So I went back and retested the most promising load (26gns/3004 fps) with variations of plus and minus .3 of a grain. Velocities were pretty consistent with the 26.3 having a 30 fps ES. However groups were all over the place, ranging from 25mm to some over 50mm for two groups of three shots with each variation. I tried another 40 gn load I know the rifle "likes" just to be sure I was shooting OK and plunked down a 15mm group - so I don't think it was me.

So . . . I'm thinking of trying a tin of AR2219 to see what that will do. My thoughts are that it doesn't like 748 (slowish burn rate) or AR2206H (a bit faster) then maybe the next step is to try something with a fast burn rate. Quickload says that I'll still get over 3000 fps with lowish pressures and a full burn in my 20" barrel (both 748 and 2206H blow a bit of unburnt powder out the end !)

Any thoughts??