All I can say is try it on the range. Since you have 600 of them, start shooting and see if you can hit accurately. Hitting the target is half of the battle. You can shoot over a chronograph and get the velocity then run some ballistics to see if it has enough energy. Just guestimating, you are probably looking at 1550-1600 fps which will give you ~1460 ft-lbs @ 100 yards. If you zero at 100 yards and using a very generous BC of .18, you will be about 2 feet low at 200 yards. You will also have about 1050 -ft lbs of energy. Wind drift in a 10 mph cross wind is 16", and time of flight is about one half second. I don't think I would take the first shot at a bull at 200 yards with this setup. If he is wounded and going away, I would drop the hammer.