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Thread: 45-70 Trapdoor

  1. #1
    Boolit Man KnotRight's Avatar
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    45-70 Trapdoor

    Just picked up a 1873 Trapdoor and loaded some RL-7 and Varget with Lyman minumum loads. Found 1 pound of H4198 in back of the closet. What powder do you prefer with a lead 405 grn FP bullet?

  2. #2
    Boolit Master
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    I'm partial to 3031 but, of late, have been using RL-7. 4198 works pretty good, too.

  3. #3
    Boolit Master

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    Olde Ensford or Swiss 1 1/2F black powder

  4. #4
    Boolit Master Reverend Al's Avatar
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    I use IMR4198 with the 405 grain HB Lee bullet in mine with good success. The same load shoots even better in my Danish Rolling Block in 11.4mm ...
    I may have passed my "Best Before" date, but I haven't reached my "Expiry" date!

  5. #5
    Boolit Man KnotRight's Avatar
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    725, the rounds that I loaded with RL-7 (37.0) were around 1530' second. After 15 to 18 rounds I had enough. That was the starting point with the reloading data. I found that the Varget was much easier to shoot but those were only around 1260' second.
    Where are you starting off with the RL-7?

    Just loaded 25 with 29.0 gns of H4198. My guess it is around 1350' second.

    I am not used to shooting out of such a long barrel. The other 45-70s that I have are a Marlin and Ruger #1 carbine.

    SIDENOTE to thread. I was shooting high at 100 yards and even at 300. Was told that the sights that came on the Trapdoor were sighted in between 250 and 300 yards and a velocity around 1350' second. That is with the sights flat and not raised. After looking at the sight, it appears that they will range out to 2,000 yards. Am I correct?

    thanks,

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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