My guns are flintlocks with 24" and 28" barrels so I have to use real black powder; My rifles are 1/28 twist and shoot the .452 250 and 300 grain xtp's really well. They shoot much better with Goex 2f than 3f so my velocity is only around 1500 fps. with 90-100 grain charges but they are very accurate.

Anyway; I have taken 1 deer so far with the rifle shooting 100 grains of Goex 2f and the .452 300 grainer at about 65-70 yards. The shot went thru ahead of the front shoulder and out behind the off shoulder. If I must brag; it was a perfect shot placement under the conditions. The deer went down faster than a New York parking ticket. There was not alot of bloodshot meat but the exit was about the size of a quarter and I want a bullet to exit. This one did and believe the 300 grainer to be a better choice if you want full penetration.

I shot some Swiss powder yesterday in attempts to boost the velocity a little but it didn't group nearly as well as the Goex 2f so I am staying with it. Next I am going to try some 300 grain Speer Gold dots and if they group well they will be my load for this season. There really isn't that much difference in trajectory between the 250-300 grainers in my opinion; but I am only shooting out to 125 yards.