I just watched and interesting article video on OCW (Optimum Charge Weight) and it seems like an excellent way to determine what your best load is. This method from what I understand determines the point your bullets leaves the muzzle when your barrel is the most stable. The harmonic shock in the barrel reverberates back and forth from chamber to muzzle. When the barrel is most stable is when this shock wave is at the chamber. It may not be the tightest group but it will be the most stable. How to proceed with this test (
http://optimalchargeweight.embarqspa...ons/4529817134) A simple explanation video of OCW (
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