There's the typical usual banter on this thread about caliber - all are fine, ie: I've dropped deer ( humanely) with a fast .22 centerfire & at the other extreme, a .375 Holland & Holland... Both calibers will do the job, though, a fact is; bigger holes are harder to stitch up. This said, as I've mentioned before, tailor rifle & importantly, ammo to task. In the same way a powder rifle bullet is used based on it's characteristics on impact & penetration ( for a given game species), so to, one should choose a pellet accordingly. If shooting long range, one obviously wants a sleek, pointy(er), heavy( er) high B.C. pellet with a narrow meplat( projectile tip). This same projectile profile, whilst aiding long range shooting, can/ is a hindrance when close in shots are taken - lower terminal energy imparted ( aerodynamic pointy tip acts as a wedge) & heavy pellet over penetrates. A flatter meplat(more surface contact on impact) & slower velocity pellet imparts more efficient energy over a larger area , given the same density/ resistance of the target medium. This resistance & surface spread puts energy in target & not behind it. Win/Win.
Takeaway here: be selective in your ammo choice in relation to it's intended usage & distance...one pellet to do it all is not
really the best choice.
While the weights differ a bit, have a peek @ meplat of each pellet here - all in .22
JSB Express .
Crosman Premier H.P.
RWS Superdome
RWS Hobby
Look at meplat difference & think, velocity , being all that's needed, which one would you choose for given tasks ? Comparable accuracy a given.