Ive been using 165s for years in my 308 and I tell ya, its more accurate than the 150s and 180s. Ive shot them all...Id go with the leverelvolutions in your marlin. I use them in my 35 Rem model 760. I will warn you now, they are loaded a little hotter than your standard old Rem or Win 308s They use a hotter powder and it cleans real well. Try em in the 165s if you can find them, you wont be sorry.