Originally Posted by idaho elk hunter
I have always been a advocate of longer barrels to a point. Barrel whip is very much a factor.
.. If a Standard Mag (7mm-300mag) Barrel is around the 28 in range and the SUPER MAGS( ultra, 30-378 etc) mags are around 31 inches in length, One would be able to load up to max loads and pressures and back off 2 grains to their SWEET SPOT. The sweet spot should be above the velocity and power of a standard 22 to 24 in barrel and far superior killing potential and accuracy. I might add that I have done several long barrel mag jobs on Weatherby cartridges with both carbon wrapped technologies out today. Both gave me more barrel whip and lesser accuracy than a fluted standard barrel.
Since I'm not a hunter other than backyard squirrels or rabbits eating my garden. I'm not too concerned about getting maximum velocity.
However, maybe I can get what's considered maximum velocity from a 26 inch barrel out of a 28-30 inch barrel with a lighter power charge. Less powder, less erosion.
Savage sells at least three of their guns with a 30 inch barrel and one with a 29 inch barrel. These are all Target Series rifles, which I assume all are capable of competition at 1000 yards.
If 3-4 inches of additional barrel length over a 26 inch barrel will give me a signifiant gain in velocity, then I could easily load back to a lower velocity with less powder.
Remember, I'm only looking for less barrel erosion.
I'm just a paper puncher with only a maximum of 500 yards available.
I have also looked for some charts that would give me velocity gains for each inch of barrel length for the same charge weight. So far, no luck.
I'd just like to run across someone who's considered this approach to less barrel erosion.
Apparently I was correct in thinking my original post was a bit confusing. The questions I've been asked so far have helped me to explain things (hopefully) a little better.
I've never read about anyone considering a longer barrel for anything other than a higher velocity.
If this still seems confusing, please tell me. I won't get good answers if I don't ask questions that make sense.