I've heard of those super light bullets barely making it to the target. Or would this only be logical with a light bullet on top of a heavy load? And, will these light loads take less of a tole on the brass?
That powder charge I gave you, a low energy high bulk powder designed explicitly for this kind of loading, will give apx 2500fps from your rifle. About the same ballistics as the old 25/35 Win or a 7.62x39 or a 30/30 with 125gr bullets. Not an elk hunting load but a great practice and varmint load. Brass, if you just neck size, will last for dozens of reloads at those kinds of low pressures, as will your barrel and shoulder and neck and retina's.