I do not know much about ballistics. I can't tell you muzzle velocity, foot pounds per second or the difference in using a 180 grain vs. 130 or 240 grain bullet. I can tell you that Mark and I have shot two deer with the .45/70 Handi-Rifles and they really do the job. I do not mean to be gross but each deer left a short blood trail as wide as a 4-wheeler in the woods and did not run far. We both are pleased with the accuracy and the ease of using the short rifle. I am planning on using mine during the regular rifle season.