For all of the folks reading this who are not competitive BR Shooters I feel some clarification is in order.
The above posts, especially this last one by Mike Ezell make this sound easy. I can see folks lining up to buy "tuners" for their varmint rifles.
IT'S NOT
When Mike says "I can see a difference in half numbers" and "It comes on pretty fast" this is like a Formula One driver coming into the pit and telling his mechanic "she's a little loose in corner 6 over there, I think we should crank 'er up just a little on the inside and maybe increase downforce..." And when Mike sez ""reasonably good grasp.....less than 100rds" he's talking to BR Shooters.
This tuner stuff applies to BENCH REST RIFLES. Tuners aren't going to change the world of F-Class shooting... A tuner absolutely will not make your factory or hybrid rifle shoot dots, in fact in my opinion the effects of a tuner are hard to even see when used on a less than accurate rifle. They're also hard to see if you don't KNOW how to shoot, like KNOW where the bullet should have went.
I know, this IS the Benchrest Forum, but that doesn't keep people from making assumptions.
If this caution is inappropriate you guys let me know and I'll delete it.
I felt it hadda' be said
al