For years I happily shot rock chucks with 52gn Sierras or Hornadys and IMR4064. Got about 3850fps from a 26" bbl. Lately switched to Reloader 17 for higher velocity and even better groups.
With 55gn Ballistic Tips or Ballistic Silvertips my top pick is R17 followed closely by 2000MR and H4350.
With 60gn Partitions R17 is tops. H4831 gives tiny groups but lower velocity.
Walt
One unerring mark of the love of the truth is not entertaining any proposition with greater assurance than the proofs it is built upon will warrant. John Locke, 1690
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