Am not a reloading expert but, my understanding is that R17 shines with the heavier bullet weights. I did use some r17 on my 7mm-08 (McGowen 24" barrel) with 140 grain bullets. I've since lost all the data in my laptop and do not recall the specific charges but if I remember correctly, once I approached 2900 FPS I started to get signs of over pressure like flattened primers and ejector marks on the base of the brass. I did reload some of that brass one more time and it was apparent that the primer pockets had enlarged as some of the primers became loose in my receiver upon firing them. If you would, please post your data if you ever get around to it. Am curious to see if I should give it another try.

Regards