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257 Ackley
Handloader
- Nov 25, 2008
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.300winmag said:Plus, it should give me a little more velocity and plenty of room to push the chamber back and rechamber it several times and still have plenty of barrel length.
Depending on the contour/shank length of your barrel, you may get one set-back once the throat has eroded enough to effect accuracy. The palma contours have enough length to usually ream and re-thread once if the throat isn't too bad, but you won't get more unless you are running a straight tube. A new barrel is part of the cost of doing business in the shooting world...
The 6.5X47 was designed by Lapua to compete in 300 meter matches against the PPC's and 6BR's that have been winning most of those matches. Good velocities can be had with 130 class bullets, but 2850-2900 for the 140 grainers will be difficult with even 32 inch barrels. There is little gain in velocity for the increase in powder that is needed once you get near top pressures in most of these cartridges. The appeal for most shooting this caliber is having an efficient cartridge that can compete well in the mid-range matches (600 yard), but is capable of competing well at the 800-1000 yard distances. Go to Accurate Shooter and look at some of the articles and info to see what some of the top BR and F-class shooters load and say about the cartridge.