Got 2 tins of .22 CPHP for $6.97 and saw .177 Destroyer EX and said what the heck, for $2.00 per tin I'll try it out. I tried the destroyer ex on my modified 1377 and DANG! I was surprised to see single holer @ 10 meters> I had to double check if I missed and saw the2nd pellet was stacked on the first one. Shoot some more and the same just a little bit bigger. I tried this with 10 pumps (707fps) dead center, 5 pumps(556fps) 7 o'clock , 7 pumps(638fps) 11 o'clock, different POI but all grouped same with 10 pumps. I think I got a new paper puncher and feathered pest pellet. Gotta go back to Wally world and grab some more .22 CPHP and a bunch more of them Destroyers EX for my Modified 1377.