first test of jsb jumbo monster 25.4 gr pellets

I shot five, five shot groups @ 30 yards off bags with my 24″ condor. The first five group of 25 was with the monsters and the second 5 shot group was with the exact 18.1. It was a little windy out.

Both five shot groups were with a 2800 fill (give or take 100 psi) and a 2200 end pressure.

At the end of the second round of 25 I shot two 13.43 gr. jumbo RS and they both went supersonic, but were pretty accurate (I only shot two with these as the wife and kids got home and the range went cold {I don’t have a shroud…}). I will do some more tests on these in the future, but I’d imagine they would destabilize at distances greater than 30 yards (keep in mind they did great in my BSA Scorpion where they remained subsonic).

These monsters were only slightly less accurate than the 18.1, but with considerably more energy for a minimal loss in accuracy. I think if I run a bunch more through my barrel the groups will tighten up, but so far they look pretty good. Next time I want to do some crony numbers with all these pellets.

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