Quote:
Originally Posted by 6.5x47 lapua
It’s pointless for me to argue with you on this so I will leave you with the fact that positive compensation comes into play with barrels and nodes. This changes everything you have known in your extensive loading experience.
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I am not looking for an argument but was wondering what you do differently and I guess positive compensation is it. I did a bit of research and all I could seem to find is that a properly tuned barrel should produce round groups at closer range which would compensate for vertical dispersion in bullets with different muzzle velocities? I believe a round group is one that is as wide as it is high?? I would imagine a 1/3 Diameter group would be preferred over one with a 1" diameter at 100 yards???
Looking at virtually all of the many good groups that I have developed they all seem to produce round groups at under 1/2". I did wonder why they seldom had the lowest ES and SD or even had seemingly high ES and still grouped great at 300 to 600 yards which is the farthest that I have shot as I shoot gophers and moose and have never had the equipment to go further. Could it be that my method of load development results in a tuned barrel much the same as positive compensation or do you use mechanical devices like the barrel tuners that were mounted on some factory rifles?
The Pressure ladder that I posted had three bullets landing in a round group measuring about 0.06 and the subsequent groups I shot were round with the exception of the flier in Target 4. The next step is to see how they perform at 500 yards/meters which will be to determine if my trajectory and windage estimates need adjustment and if vertical dispersion is a problem.