Jukar spain .45 cal 1360617/5/2023 For starting loads use the same grains of black powder as the bore size, ie 45 caliber, 45 grains, and a max should be twice that, ie 90 grains. slow twist is for round balls, for guns under 50 cal use fffg, for guns over that use ffg. For nearly every long rifle there are some old tried and true traditional rules of thumb.
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