Question, are you looking for a sniper rifle or a glorified varmint rifle. If "one shot one kill" is, as it used to be, the idea, who needs a heavy barrel? Now I do like the idea of a more than one round mag, but most sporter weight barrels are plenty accurate. I have a Savage 110 in 30-06 that shoots 1/2 MOA with a 5 shot group, each shot fired from a clean, cold barrel. Its that first shot form a clean cold barrel that counts. Both in hunting or in sniping. If however you want to shoot prarie dogs, than by all means, a heavy barrel is needed, to disapate the heat of rapid shooting action. My .223 has a heavy barrel it is a varmint gun, and a darn good one. It weighs more than the Savage, and I would hate to have to carry it on a long range patrol. A heavy barrel is all the rage on sniper rifles today. Seems the M1D I used had a standered weight barrel. Just food for thought. Bear with me spell checker seems to be down [sniper]