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well the 485s go boom,the same as 405s with black powder duplex load..... the 400grn jacketed with a load of 2208 got a heap of whallop at both ends,my scope actually lifted my hat on one round........

5grns 2219 and 50 grns black powder loaded under the 485s...they look scarey..... will let you know how the ygo when pluck up courage to try them LOL.

thanks folks...I can fit 60grns home brewed BP in case with a bit of tamping so a blend of home brew and some generously donated (you know who you are,thankyou) fffs will hopefully see me about...

so more fs means more fines,till its ffffffn fine indeed???

beauty bud..just what I hoped to hear....knew it was a dumb question LOL.

So this is probably a daft question......how do you know correct charge amount of black powder in a cartridge if cannot find data for that????
specific reason.... loading for .45/70 AND YES I KNOW...