Originally Posted by tculin
Revisiting this older thread.

I'm just starting my 280ai adventure and will be using IMR 4350 or 4831 and what are you all using for reference for you minimum charge weights?



As I have too much H4831, that is what I am using. I'm sure some of the newer powders give more velocity, but I've been happy with it. I load 62gr with the 140TTSX. I have no reference for that load, but it seems to be fine in my rifle.

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