Ive been shooting a 16" carbine in action shooting and am looking for a rifle. my bushmaster carbine does a good job and its a keeper. 55gr. ammo is of quality and price. federal makes a 62gr. fmj w/flat base. this is avail. at a good price also. my question is will this serve as an appropriate 'long range' round for a varmint [1/9, 24"] and also what will it do to my scores in action shooting in the carbine? would be great if this could be a one cartrage for me.