- Aug 23, 2010
I know this has been discussed before but everything I have read seems to always turn out the same, people get off topic and the issue never honestly seems to get truly resolved or people just start throwing other clamberings into the mix, this is an honest to god good question I have and hopefully everyone will stay on topic. So here's my issue, I shoot steel quite regularly at 1000 yards, I do so with a 20" barrel 5r mils pec Remington in 308 Winchester shooting 175gr Sierra match kings, I'm getting ready to build an m40a5 clone, I've always liked the idea of using something with the 308 parent case but with bullets of a much higher bc, especially the 7mm variety, I know the velocitys I'll get with a 25" tube will be slower in 7mm08 than they would be with a 6.5 creedmore but the difference in bc helps to make up for that a great deal, the 7mm bore should give a bit longer barrel life as well compared to a 6.5mm. As for bullets, swamp works has a 168gr with a published bc of .690 (probably a bit optimistic) and there's always the 162gr amax at .625 and to round it out, the Berger 168gr at .617 I think. Now with a 25" tube (24 from the front of the recoil lug) I should be able to push them to 2600-2650 without any undue pressures I would think plus there's the fact lapua has come out with 7mm08 brass now which raised my eyebrow even higher. Now my question is, why on gods green earth don't we see or hear of more people shooting the 7mm08? Is it not as inherently accurate? It shouldn't be any harder on barrels than the vast majority of 6.5mm offerings, almost all major companies have bullets with very respectable bc's. So what gives? Sure the 6.5 mm may have a slightly and I do mean very slightly flatter trajectory out to 1000 yards but who cares when you've been shooting that far with a weak kneed, snub nose 308 that's already having to shoot over a 2 story house to get there, either will be a vast improvement in both drop and drift than the 308 for sure, so, is there anything wrong with the 7mm8?