Count this as another vote for a 158gr or heavier bullet at 850+fps. Personally, I like the Lee 158gr RNFP if you dont want a gas check, or the Lee 158gr SWC if you do, but either is very accurate out of every .357 I have--Security Six 4", GP-100 6", Vaquero 4 5/8", and several lever-actions. I used the RNFP on my last buck out of my Security Six 4" at 1100fps (per the load books) with a head on shot diredtly in the chest from 45yds away, and the bullet was recovered right next to the rear hip, so provided almost complete lenghtwise penetration. The only thing I have used the SWC for was a coyote, which was hit at just over 100yds away, facing me with its head down. The bullet hit the spine between the shoulders, did a complete pass through, and was not recovered, fired out of a Rossi '92 20". The buck only took three steps before collapsing, which I call good performance. The coyote dropped in place and I never saw him even twitch. If it will penetrate like that on coyote and deer, I have no doubt that it will work for a well placed shot on any coyote or hog. Either of these bullets gives a decent size meplat, so should work well for your purposes. I personally prefer the .357, but that 1100fps load isn't much more than the 1000fps .38 load mentioned above, so should work equally well.