I recently bought a Mark V 300WTBY and put a swaroski 4-12 BDC scope on it and I have been shooting some reloads that I reloaded in the early 90's, I used to have a german markv that I shot for deer with a load of 77.5grs of IMR4831 and 150 gr speer ballistic tip. Looking for a new load/bullet that will be used for deer and coyotes and at ranges up to 600 yrds, any ideas?