My gun choices are .308 with Mcree 20" Remy 700 shooting 178 AMAX, or FN 300wsm with HTG shooting 178 AMAX, or 3 weeks before comp my .243 Remy 28" barell 7.5 twist shooting 115 DTACs may be done. Considering the circumstances and what type of match this is what would be the best gun to take out of the the three. Any input would be appreciated.