Posted this and more on the yellow but I got no response. So here goes:
I don't shoot my gen 1 .22 Royale for groups often anymore but when I do, on still days, it tends to show me my mistakes. On gusty days it's all over the place, sometimes moving the 18.1 Jsb 3x farther than a .25 shooting at 40 ft. lbs. I had a breezeless day recently, however, and I gave it a whirl at 50yds. I pulled one but got 8 of 9 shots at exactly 5/16." I must say this gun still got it! Even with discontentment rising in me because of the Crown, I like everything about it. It's still a wonder gun, just like it was years ago.
However since it is a tough shoot on windy days I have been condsidering getting a .25 for my main gun. But because of the emergence of Jsb's new pellets it has me thinking: all I need is to get my gun bucking wind as good as a 25. Which brings me to the point of this post: Has anyone had success with the .22 cal. 25.4 grain redesigned pellets in an original smooth twist barrel? I've tried these and the new 34 grains as well but only the 25.4 grains show promise. With the 25.4s I get 2/3rds of the pellets shooting 1 hole at 50yds humming at roughly 830 fps

Also, what would it take to get my gun shooting optimal for these pellets? Obviously a sacrifice of shot count and reg. adjustments. But, new parts perhaps? Is this even possible?