110 grain accubond

Use the 115 gr load data for your 257 Wby Mag.


Start 65.0 grs
Max 69.0 grs

JD338
 
If you have a crono and you watch your pressure signs, sure you can go a couple grains over "book maximum." This is the only real way that one finds a true MAX load for that particular combo for YOUR rifle.
 
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