Yaddio: I gave up on the 70 grain Sierras long ago - they ARE very accurate but I MUCH prefer the 70 grain Nosler Ballistic Tips in my 240 Weatherby - for accuracy and lethality/results on Coyotes, Badgers and Rock Chucks.
Use those bullets (the 70 grain Sierras) as trading stock.
Best of luck to ya.
Hold into the wind
VarmintGuy