So over the past few months I have come to realize that the 6.5X284 is (for the most part) the 6.5mm cartridge of choice for long range shooters. I am looking now at the 7mm caliber and am asking which cartidge would be best considering all aspects of shooting. I am looking at first accuracy, recoil(less is better for me), barrel life, brass quality, cost to reload among lots of things. What would you recommend in the 7mm caliber for 600 and 1000 yard shooting and possibly beyond??? Please all suggestions would be greatly appreciated. Thanks for the advice.
for critters up to deer my vote goes to the 7-08 Ackley improved , you can use 308 Lapua brass which is very high quality and last a long time ,easy to find and cheap. 200 pieces would probably last the life of the barrel if you diden't get nuts with the pressure.
The 7-08 will have better barrel life less recoil than the 284 or 7mmWSM though you will give up some speed to the other two , maybe 200-250fps to the 284.
With a 168gr Berger at 2800fps you will have plenty energy to kill deer at 1000yds , and if you run a longer barrel say 28-30" you could possibley get 2800fps with the 180gr Berger
I have shot 7mm rem mag for years. also have a 7mm Weatherby mag as well. Both good, and not to be scared of, always been happy.
Recently,however after putting together a 260 AI, I have decided that 280 AI will be where I am going in the future. efficient and easy to load. With a longer barrel, it will be all i need using 180 vlds. If i really want to stretch the legs i would feel more comfortable in one of the 338's
I have done more research on the 7mm than I care to admit. If I had to stick with a 7 I'd either go with the WSM or Rem Mag pushing bullets in the 168 gr range. After all my research I decided to go with the 270 WSM pushing 150 gr Wildcat Bullets through a 28" barrel. The deer and antelope in SD won't know what hit them.
I read the articles on that link. So is the extra neck length 7mm x 300WSM worth the effort over the 7mm WSM? Are there sources for quality brass? Looks like NORMA makes 300WSM, what about 7mm WSM? The neck reamer in that article was .312", turning the case down to that number does not sound unreasonable.