Thanks for all the info guys. I'm going to go with a 6.5x284 i think. Barrel life isn't a big concern with me. As long as it is accurate. rebarreling at 800 or 1000 rounds is ok because i can do it myself. the 6.5x47L is interesting but i don't think it has the down range power I will need. the 260 seems about the same accuracy wise, more barrel life and a bit less velocity. but like i said, if accuracy is the same ill sacrifice the barrel life.
The 6.5 Sherman will outperform the 6.5/284 by 150'/sec. and barrel life is just as good if not better from what I've heard of the .284 version. Since the parent is .270 or .280, brass is readily available from most manufacturers. I can get 3200' out of a 26" barrel with pinpoint accuracy at 3150'.......Rich
Here are a couple of pics of the 6.5 Sherman. The rifle is a 700 rem. with a H-S stock, #4 Lilja SS, fluted, 26", 3 groove, 8 twist. The scope is a 6.5-20 Zeiss. It also has a jewell trigger. The barrel has approx. 1500 rounds thru it and still shoots 1/2 moa. It has lost a little accuracy as it use to shoot .3 moa. The loaded round is the 6.5 Sherman with a 140 A-Max compared to the .270W parent. The Sherman is an 11% increase in case capacity. I believe the barrel life is good because the Sherman version has a .300" neck and 40 degree shoulder which keeps the flame point directed inside the neck rather than directly into the throat like the short necked .284 version.......Rich
It seems like a cool chambering ... I just haven't seen that round and honestly dont want to pay for the reamer. Unless you know of one i can borrow to send to a smith
Ya, it hasn't been aroud long and there are only a couple out there. Just thought I would throw it in the mix. You can rent my reamer for $25 to cover wear if you want? Good luck with your build. I'm sure the 6.5/284 will do a good job for you......Rich
I'd lean towards 260 rem if I expected to do more mid range and faster follow ups such as tactical.
I'd lean towards the 6.5x284 for longer range hunting or competition.
800 rounds is often thrown around in reference to competitive shooters using near max loads and seeking premium precision with little regard for the extra cost of barrels. In fact, one of my 6.5x284 hunting rifles was built on a Kreiger palma barrel that was retired after 800 rounds. After setting it back, it's still a very solid 1/2 MOA (or better) shooter another 300+ rounds later. If you try to compete with the 6.5x284 using the 260 rem in those conditions, you'll reduce the barrel life there too.
The 6.5 Sherman and 240 Wby are serious hot rods if you want to go all out.
Conversely, 6.5x47L is pretty conservative and a pleasure to shoot.
I don't think you can say that any of these are inherently more or less accurate when built and used properly.