Re: .308 with 208 Amax and Varget
Yesterday made it out to finalize 2 loads that I wanted to run 5 shot groups, and get a larger sampling over the Chrono to know what's really going on. It was 87 degrees, only 2 degrees warmer than the previous Saturday outing so I was expecting the chrono readings to be the same, or really close, but regardless, the data was good information.
These loads below are 43.3gr, and they had the best chronograph data, however it was about 30fps slower than on the last outing. I'm thinking that because I had the chrono in the shade this time, it was getting slightly different readings.
Also, by the time that I was firing the last 2 groups in this series of 3, the range was getting very busy again, and I pulled 2 shots due to some guy to the left or right of me touching off his shot while I was in the middle of my trigger squeeze. The top 3 were all good as it was quiet at the range.
My ES' were in the teens on the 43.3 load, and with the velocities being a little higher I think i'm going to stick with that load. Next outing hopefully will be a 700y testing as long as it stays dry, and not too windy.
My wife is going to Cabelas to pick me up another pound of RL17 so I can do some more work with that as well. Going to see what I can do with mag length loads with that.
With all the data I have thus far, I can say that I get some really good consistency with the Varget/208 combo, however not quite as much velocity as i'd like. HOWEVER, 2400fps is still more than enough velocity with the 208 amax to keep it supersonic to well beyond 1000 yards, in fact it'll go just past 1200. 2500fps isn't necessary for me, however a little more is never a bad thing as long as you aren't making compromises elsewhere.
Comfort to shoot is also better with the 2400fps start. I would say that it's about the same recoil in my rifle as a 175 getting pushed hard at 2700 or more. I've shot the 178amax's as fast at 2750 in my rifle, and I would equate the recoil to being about the same.
I'll go out and shoot this load again sometime before too long. Hopefully from the prone this time, and at a quiet range where I won't get startled from others. I hate it when i get that darn good group spoiler!
Branden