There is some belief that the .30-30 was originally loaded with Black Powder.
However, I cannot find reference to any BP loads for the .30-30 in my Lyman's BP Handbook. My Speer reloading manual notes that the .30-30 was the first small bore cartridge loaded with smokess powder. Neither my Speer or Lyman (smokless reloading) manuals make any mention of the .30-30 as a BP Cartridge (as they do for the .45-70 for example).
I shoot BP cartridges in my .45-70 (Sharps 1874 replica ) and my .45 Colt (Peacemaker replica), and I suppose a BP .30-30 could be done, but I am not sure why you would want to.
I am not recommending that you do this, but if you do try it, be very careful and note the following:
BP cartridges generally require a softer (pure lead) bullet with special BP lubes (such as SPG). Harder alloy lead bullets which are designed for higher velocity smokeless cartridges may not expand at the base enough to make the "seal" with the rifling as will the softer BP lead bullets. Conventional lead bullets will also not be lubed with the BP specific lube that helps soften and reduce the inevitable BP fouling build-up.
You cannot leave any "air-space" in the cartridge. With any BP load the bullet must slightly compress the powder when seated.
Again, I am not recommending that you proceed with this idea.
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TXnorton
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