We start innocently. VERY innocently. First, we look up the cost of the most expensive 6.5 Creedmoor precision ammo that we can find. You know, the 6.5C you're building is for the ultimate precision, right? I bet we can find some stuff that's about $4 a round, if we hunt hard enough.
After that, we start looking at "trainer rifles" and comparing some of the cost of those trainer rifles that are abnormally high in cost... but, STILL cheaper than that $4 a round that we're looking for on that Creedmoor.
After that, we start comparing costsof "Trainer Rifle Training Ammunition..." Key words there, man.
Fact: for comparing similar wind drift -Shooting .308 Win at 600 yards will have very similar wind drift as Shooting .22LR at 200 yards.
So, we work the .22LR into the game here...
THEN, we bust out .22WMR. We've already broken out the 200-600 comparo with .22LR, BUT... we break out the minimal cost difference between .22LR and .22WMR, and explain the vast difference in distance-trajectory in the benefit of the .22WMR round. (we will need data charts to show the differences at distance between the two ".22s"...).
THAT IS THE POINT RIGHT THERE...that you bust out the cost of the Ruger American .22WMR bolt gun.
At that point, my good man, once you've confused her with so many dollar signs all over the place, she goes for the MSRP of that Ruger American .22WMR, and she'll THANK YOU for being practical, and saving money.
Hold my beer and watch THIS shiit happen...