RE: .243 range
Using the rule of 1000 fps and 600 lbs of energy to kill a deer effectivley and a 100 gr Remington Core-loft you can shoot a deer justpast 500 yards if you practice and know that your rifle can shoot that far accurately.
Velocity (ft/sec)
Cartridge Type
Bullet
Muzzle
100
200
300
400
500
Remington® Express®
100 PSP CL
2960
2697
2449
2215
1993
1786
Energy (ft-lbs)
Cartridge Type
Bullet
Muzzle
100
200
300
400
500
Remington® Express®
100 PSP CL
1945
1615
1332
1089
882
708