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Hot Topic (More than 10 Replies) Unburned powder in the bore, 300 rook (Read 1352 times)
ClaMar
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Re: Unburned powder in the bore, 300 rook
Reply #15 - Feb 21st, 2023 at 11:38am
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NOt a 300 rook, but I use HP38 in my Martini 310 Cadet (only faster pistol powder I had during Chinese flu) with a custom 120 gr. bullet.  3.5 gr. gives me ~1100 fps; really needs a filler our a small piece of tp to keep the powder nearest the primer.   

Shoots very well!

Clarence
  
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