I understand your question, I am not looking for a non-expanding bullet, I'm looking for something other than hollow points (see my long story below). Since I couldn't find any jacketed soft points, the copper solids are worth looking at. As to a pencil hole, I'm shooting a 0.410 diameter "pencil" and that through-and-through hole in a vital area would be close to the diameter of a mushroomed .243 bullet, I'd venture to guess, only I'd get blood trail from both sides of the animal. Could also take quartering away shots on game I might normally pass on with a pistol.
The long story - I shot a 250 LB escaped butcher pig with my 45ACP as it ran by at 20 yards. Three shots right behind the front leg. Pig continued on and then I put it down with a shot to the head as it came around the shed. Blood dripping out of the three holes in her side. I skinned her out and all three hollow points were completely mushroomed and stuck in the fat layer. Didn't even penetrate the ribs. To butcher another pig I shot it in the head with .22 as always, normally they drop so I can bleed them out, but this time nothing happened, I chambered another round, repeated the shot, again nothing happened ( except by now was one pissed off pig with a headache). I checked my gun and found .22 hollow points. I reloaded with 22 solid lead bullets and the pig went down on the first shot.
I have absolutely no use for hollow points for killing animals, farm or big game.
I do appreciate your question though, as I'm not sure of my audience being new to this forum.