When you've found the brand of ammuntion you wish to use, lot test, lot test and lot test some more. Even this will be trial and error based on the chamber of the rifle and about 200 other things which make incremental increases or decreases in accuracy. Buy the absolute best ammunition you can affored PRIOR to tuning the rifle. Lastly, and this probably doesn't need to be said. I still begin tuning using PRX, but if I find it's not working well, I switch to Hopewell and begin anew. My agreement with Lee extends to the fact you can virtually 'always' find your tune using Hopewell, while you 'may' find your tune using the PRX. But it's not foolproof and your rifle may or may not respond well to it. That's worked for me twice out of four rifles. Shoot 3 shots, turn the tuner, shoot 3 's laborious but an absolute necessity in obtaining your tune. Lee explained to you the 'Hopewell' method of tuning. Not only does it provide more 'X's' on an ARA, but it also closes up my groups more consistently at range. I will say this.based on my personal experience with Lee's shaved tuner, and I'm talking my own experience, short of lot testing, it's the single biggest improvement I've seen in my shooting. I've used virtually every type of tuner on the market, including a couple I had to order from England.

There are pros and cons to a shaved tuner, some people say yay, some nay. How do I know it's the same? Lee turned it for me. Can't/Won't add much to what Lee's posted, but I use the same tuner Lee has on the end of his barrel.

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