Adam, I really like my 84m in 308 and probley is my favorite all round go to rifle.I dont know if i will buy a 8400 especialy since they only come in the wsm calibers.Most of my shoots are inside 200 yrds.-100yrds.I feel well Armed with a 308 and really wouldnt gain that much with a 300?If I do I will get the 325wsm....