I was just paging through the Lyman pistol and revolver handbook for different powder to use in my T/C 14" 30-30. I was using SR 4759 and enjoyed shooting it. But now that 4759 is discontinued, I 'm looking for a replacement. Someone mentioned the use of 4198 at one time, but don't recall if it was IMR 4198 or H4198.. I shoot the RCBS 165gr Sil using Water dropped wheel weights and sized to .310. All decked out with lube and alum check, it actually weights 173 gr. Has anyone have any recommendations for 4198? I was also thinking about R7 too. This T/C is used to shoot IHMSA silhouettes so accuracy and knock down power is needed. Thanks