Today I took a few of these out to test out some loads.
21gr of 2205 averaged 1527fps for an ME with bullet sized and gas checked at 275gr, of 1428ft/lbs. This was a mild load.
23gr saw them whip out at an average of 1684fps for 1732 ft/lbs.
Not bad for a stumpy little pistol case and I don't think too many boars will shrug that off.
I also had some shiny new Lee 310gr flat pointed solids along that I had just cast up. These are 315gr sized and checked. Big, with flat nose around 9mm across.
A mild load of 18gr of 2205 saw them average 1393fps for 1357 ft/lbs.
The other load was 20gr of 2205 and with that load they averaged 1500fps for an ME of 1574 ft/lbs.
Given that these are a solid, I envisage total penetration with side on shots no matter how big the pig, unless a very large bone is struck. These get their shocking power from the broad, flat meplat and won't expand being cast from straight clip on wheel weights.