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Thread: Lead to Tin Ratio

  1. #1
    Frenchie of the South SkyKid's Avatar
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    Default Lead to Tin Ratio

    Hey Guys
    I see rotometals sells "pure lead" for less than mixed lead
    If I add 1 pound of tin to 25 pounds of lead does that equal a 25 to 1 ratio?
    If not please enlighten me how to make up the ratio that I'm looking for
    I want to try shooting BP in my Buffalo Classic
    Thanks SkyKid
    Camper at RLB Fest 2006,2007,2008,2009,2010 and 2012
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  2. #2
    NRA Distinguished Life Kirbydoc's Avatar
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    Default

    SkyKid, 25 pounds of one thing and 1 pound of another is a 25:1 ratio no matter how you cut it. {Pun intended}
    Just curious, where did you get pure tin?

  3. #3
    Spam Hammer fryboy's Avatar
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    Default

    rotos metals evidently ( they kinda pricey but ... they got it )
    yes sir 2 pounds to 50# or 4 to a 100#'s of pure ,oddly enough they usually suggest recipes in some weird ratio just to complicate it , things like 95 #'s lead to 5 #'s tin to make a 100 pound batch of 20 to 1 ...when you should be making a 105 pound batch for the ratio to be true , it's close enough tho so ..[shrugz]
    you dont honestly need that much tin for black powder , the main thing is a repeatable recipe/alloy

  4. #4
    Dogs Like Him versifier's Avatar
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    Default

    Yes. 25:1 is 4%, but you really don't need more than 2% (simply for better fillout) unless you're going above 15-1700fps and would need to add GC's, then you can go up to 4-5% and maybe add a tad bit of antimony too (think WW's, good for well over 2000fps).

    Original bullets for the 45-70Gov were swaged pure lead, as were the balloon-head cased factory loads for .45-70, -90, and -110, etc. They used to shoot those reasonably accurately at surprisingly long ranges, even by today's standards.

    By way of comparison, my non-magnum non-GC handgun bullets never run more than 1-2% tin.
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check        

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