66g of R22 under a good 150-160 in R+P or WW brass lit by 215s is always my starting point(and usually the ending point) for every 7RM I work loads for. I've dabbled with many other combos, but that one just plain works more times than not. It's kind of like 60grns of H4831 under 130s in the 270Win.
When 22 is not available, 67g 7828 is a good sub.
For 140s, my go-to load is 69g of H4831.
