If we can ever get it to quit snowing around here so a guy can actually go out and shoot
, I am going to try some in the 6ppc. I've been wanting to do it for awhile now and just never had a spare barrel good enough to give it a fair chance. But I've got one now and will give it a go.
I have been using it now for about 5 years in my .223 with 40 grain vmax and it is amazingly fast and very accurate. When running at top to middle pressures, it is as clean as Vihta V.
An interesting story with this powder: My cz 527 varmint kevlar 223 has always shot real well. 1/4"-3/8" groups were attainable with every powder I tried. N133 shot well, so did Benchmark, so did H322. When RL10x came out, I bought some to try. I ran it up to the published maximum with a 40 grain bullet and it was the only powder that ever shot 1" groups or bigger in my rifle (including factory garbage) and it was barely cracking 3600 fps. I was getting 3800 with Benchmark and N133. So I shelved it for a 9 months or so and then one day while tinkering with different primers and my Benchmark load, I loaded up some more RL10x but went above the published max (around 25 grains I think it was) to 27 grains in .3 increments. Well, to make a long story short, it started shooting great! Groups came down to .200" at 100 yards in some loads, the deviations were single digit (very hard to do with light bullets running extremely fast) and the speed was slightly faster than what I could get with N133 or Benchmark.
Pressures were still ok so I tinkered around a bit more.
All this time I was running fed 205's but I decided to try some WSR's and the RL10x. WOW! The WSR's jumped me up about 160 fps and group size got even better. I was now running 40 grain vmax at 4015 fps with a 223 in a 24" barrel!
ANd getting good accuracy and deviations as well. Well, at this speed, the powder burns extra clean and is on par with H322 or Benchmark. I usually get one slightly gray patch and then one slightly blue patch and it's done.
I've since gone through about 4 different lots of RL10x and it has never needed a charge change more than about .3 of a grain. It has been WAY more consistent for me than any other Alliant powder including Rl15.
This all got me to thinking, maybe a stiff load of this stuff would really work for the 6ppc. Gonna try it and I'll report my findings.....if the snow ever melts.