Looking to get more of a hunting air gun, have a .22 Disco but looking for something with a little more knockdown power. Here is my issue, i only have a hand pump and won't be using a scuba tank to fill, the .25 has 3000 PSI to fill instead of the 2500 the .22 has. Plus the .22 has twice as many shots as the .25 does, but I'm wondering is it really worth the power behind the .25 bullet. I'm looking to be able to head-shoot hogs/ coyotes with this gun and I'm wondering if its possible with the .22 caliber. Any feedback would be great! Thanks!