I have been working on my AA TX200 for about 15 months. It has the Vortek PG-2 SHO Kit installed. Thousands of shots later, using virtually every pellet available to try, yesterday I achieved five groups nearly all identical to the one shown below. These groups were achieved using the Air Arms Field Diablo 8.4 grain pellet. They averaged 830 fps out of my rifle with a SD of 5 fps, right out of the tin, with no individual pellet weighing exercise involved.
On this forum and in other places, I have read where JSB makes this pellet. Interestingly enough, JSB Exact Match 8.44 pellets, hand-weighed to within .10 of a grain, averaged 10 fps less, with a SD of 10. They shoot "nearly" as well but obviously not quite as good, and I have tried this comparative exercise many times now. Also, I tried the very expensive JSB 8.44 premium pellets with no better result than the standard Exact Match, at the 18 yard indoor range, and the 50 yard outdoor range.
The group shot below, is a 10 shot group. The squares are 1" and the shooting was done from a bench with sandbags, at 18 yards on my indoor range.
At this point, I don't think I am going to worry about making it better and call it "good enough."
On this forum and in other places, I have read where JSB makes this pellet. Interestingly enough, JSB Exact Match 8.44 pellets, hand-weighed to within .10 of a grain, averaged 10 fps less, with a SD of 10. They shoot "nearly" as well but obviously not quite as good, and I have tried this comparative exercise many times now. Also, I tried the very expensive JSB 8.44 premium pellets with no better result than the standard Exact Match, at the 18 yard indoor range, and the 50 yard outdoor range.
The group shot below, is a 10 shot group. The squares are 1" and the shooting was done from a bench with sandbags, at 18 yards on my indoor range.
At this point, I don't think I am going to worry about making it better and call it "good enough."
