H414 / W760 work well for me in my 2x 243's for my 70-87gr projectiles. reloading data shows they are good for a range of weights from 65-95gr.
for heavy bullets in my custom 243 I have used W780 (now obsolete) currently use RL26.
the Hodgdon reloading web site is great. they have a good range of loads from 55gr @ >4000fps up to 115 gr @ 2960fps.
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