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Thread: Powder coating 45/70 Trapdoor

  1. #1
    Boolit Buddy
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    Apr 2015
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    Powder coating 45/70 Trapdoor

    Iím casting the Lee 405 grain hollow base for my 1873 Springfield Trapdoor. I am going to use both smokeless and Goex. Will powder coating the hollowbase bullet be ok using smokeless powder in this Trapdoor?
    I would assume that when using Goex a lube must be used without the powder coating.

  2. #2
    Banned
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    No lube needed with powdercoating.

    Hollow base, not a problem if it gets coated or not; only important that the area that contacts the rifling gets coated

    Many people do not PC the bottom.

    I've PC'd over 100# of 45/70 -for friends, they love them

  3. #3
    Boolit Master gpidaho's Avatar
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    I shoot those bullets powder coated in my Henry 45-70 and they work very well. Gp

  4. #4
    Lube needed with black powder regardless of the coating or not.

    I would suggest maybe lube cookies with a plain base. With a hollow base I would probably pan lube with SPG or similar.

  5. #5
    Boolit Master Reverend Al's Avatar
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    I powder coated some Lee 405 HB .45-70 bullets to try in my old Trapdoor with fairly good results. I tried the same bullet and loads in a Danish Rolling Block and it shot a fantastic 3 shot group at 100 yards. I loaded and shot them "naked" (no outside lube). All of my loads were with Trapdoor safe charges of IMR4198 though and not with black powder ...



    I may have passed my "Best Before" date, but I haven't reached my "Expiry" date!

  6. #6
    Boolit Master


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    Powder coating works great in my .45-70 Marlin. I don’t see a need to gas check them.

    I don’t see any reason you couldn’t use the powder coated boolits with BP if you wanted to. Just follow correct procedures for BP. Swabbing after each shot or using a greese cookie.

  7. #7
    Boolit Buddy
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    Thanks everyone for the information. I was able to cast a 100 of them today. Still trying to get a handle on that as some were at 405 grains and some as low as 396 grains. Anyways going to pan lube half and get the makings to powder coat the rest.

  8. #8
    Boolit Buddy
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    I picked up an 8 oz Eastwood Hot Coat bright red powder. Will this work ok for the 45/70 bullets?

  9. #9
    Boolit Buddy
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    Well here is the first batch of powder coat Iíve ever done.
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  10. #10
    Boolit Buddy
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    Click image for larger version. 

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    Ok here is the hammer test after a couple hours. What did I do wrong or right with these?

  11. #11
    Boolit Buddy
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    Looks good to me. Try a few for accuracy.

  12. #12
    Boolit Buddy
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    Quote Originally Posted by Les Staley View Post
    Looks good to me. Try a few for accuracy.
    Have some loaded up hoping to get out in next week or so. Did a second batch with not as much powder on them and they came out much better than the first.

  13. #13
    Boolit Buddy
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    Post

    Well the pc bullets over 27 grains of H4198 worked very well though my eyes really sucked trying to see sights. So I thought I would try them with Goex. Pan lubed some with 50/50 beeswax and olive oil. For first time pan lubing they seemed to be ok. Will load some up with around 60 grains of Goex and see how they work.
    I will say those ones I shot with H4198 were super clean so I’m sure with the black powder I will have a mess to clean up.

    Not sure why picture is sideways?
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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