Hi, am i correct in saying that a .22 rifle gets more shots per charge than a .177? Say for instance you take 2 identical rifles except one is .22 and the other .177, both at 12ftlbs, the .22 rifle will get more shots per charge than the .177.

Will this be the same with heavy and lighter pellets? Say for instance you take 2 identical rifles both in .177 and both at 12ftlbs. With the one rifle you shoot 8.4gr pellets and the other 10.5gr pellets, will the rifle shooting the heavier pellets get more shots per charge?

The reason for asking is i was looking at an ad for a rifle, and they advertise the rifle at 1000ft/sec with 25 usable shots per charge. I suppose or assume that the statistics was given for pellets that is not too heavy. So if you use 10.5gr pellets in the rifle, will the shot count go up to maybe 30? Or am i missing something and the shot count will be the same?

Any input will be appreciated, thanks.