txhunter58, There are some intersting things about that, did you know that the barrel length and the weight of the bullet change where the point of effence is in a load. its interesting to play with a chorny because of that.
Also that while a heavy bullet will burn the powder more effectivly in a short barrel your flatest shooting load will be a lighter bullet, and the sectional density will control penatration along with the hardness and shape of the bullet,
thats why I like this 200gr 40 cal SW, with 110 gr of 777 I get over2200 FPS which gives a very nice trajectory and it has the same penatrating capability as the 300gr 45cal SW,is that not a nice combo. Lee