I shot three different times with these shells the lowest I had was 263. This was the best of the three patterns, but the average is in the 270's. I would think you would get about the same numbers I did when you shoot this evening. Also I've noticed I get a little bit higher numbers, anywhere from 10-20 more pellets, if I don't clean my barrel but every other time I shoot. Any more than two shots between cleaning I saw pretty good size drop off.