Read the whole thread, some good points made. But not what I consider the most important 1. All of you compare the std 300 sav commercial load of 2700 fps or the later one of 2660 to the 150 30-06 @2700fps that was the service military load not the commercial load for the o6. The only thing that compares the same is the .308 bullet dia. The 6.0 edn. Of western powders reloading data shows every 150 max load over 2700 in the sav with a 24" barrel and they were held to 44,000 cup . When you slide over to 30-06 data most 150 loads with suitable powders run 2900+ to over 3000fps.
When I bought my 1st 300 sav I was able to load 150's & 4064 to well over 2700 in my 110 wle model, I sure as hell would not run that ammo in my 99. While a guy can run the pressures up a bit in a bolt gun the case is not designed heavy enough for extra pressure from what I have seen. If a guy wants to hot rod his 99 use one in 308 then it's the guns limit you need to be mindful of. Just my thoughts. MB
