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Daveh, Thanks for the reply..With the Roberts having been factory loaded on the mild side how do you go about judging pressure ? At 45 grs of IMR4350
I have not yet noticed any signs of excessive pr ...

Please let me know if you work up a good load for your 100 gr Partitions.
Currently I'm getting 1 inch groups with my M77 .257 roberts with 45 gr IMR 4350 behind 100 gr Sierra Pro Hunters.. I would l ...