Originally Posted by clemens
Curious about the 7stw what is the heaviest bullet any of you have used and has anyone tried the 200gr uld rbbt wildcat or is it worth trying?
From a quick numbers dump into the hornady calculator, my nosler bonded actually shoots 5% flatter to 1000 yards even giving the 200 grain 2900 fps to start with; that may be a stiff push for the stw.
The 140's are easily launched to about 3400 fps in an stw, so that's what I tossed in. I used .920 bc on the 200 which was found in a thread here. I used .485 bc for the 140 which is noslers book#.
The 200 has a SIGNIFICANT energy advantage (1700 # ft to 800 # ft), but the 140 still has enough energy to get 'er done as far out as I'll whack a critter.
I'm not entirely sure a 9 twist at 2900 would spin this pill enough... perhaps someone with a stability calculator handy would chime in??
Range (yards)Velocity (fps)Energy (ft.-lb.)Trajectory (in)Come UP in MOACome UP in MilsWind Drift (in)Wind Drift in MOAWind Drift in MilsMuzzle29003735-1.500000100279834773.1-3-0.9000200269932343.3-1.6-0.500030026013005-188.8.131.52040025062789-112.60.800050024132586-26.351.500060023222394-184.108.40.206070022322213-75.310.3300080021452043-11013.13.800090020591884-220.127.116.1100100019761734-202.719.45.6000