Hey Fellow Hand Gun Hunter! I too handgun hunt and own a .454 Casull. Here are some stats for the 300.0 grain bullet weight.
0 Yards: 1802 Velocity 2164 Energy ft-lbs Path (inches) -1.50 Drop Inches 0.00
50 Yards: 1625 Velocity, 1759 Engery Foot Lbs. , Path: 0.90, Drop Inches: 1.43
100 Yards: 1463 V, 1425 EFL, P 0.00, DI 6.17
150 Yards: 1318 V, 1157 EFL, P -4.98, DP 14.98
200 Yards: 1194 V, 951 EFL, P -14.98, DP 28.82
Of course this is for my own set up (handloads) and you will have you own stats but this will be fairly close to factory loads since that is the route your going. If you are looking for a little more distance and you are shooting a Contender etc... you might want to check out some other barrels such as the .308 etc... Have fun and good luck!! Oh yeah, you might want to pick up a book called " Ron Sabo' s Long Range Pistol Handbook - A Practical Guide For lang-Range Pistol Enthusuast" It is full of great info that you will certainly need and use. CDH