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Rek
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Use a black powder bullet for smokeless?
May 1st, 2014 at 1:55pm
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I'm on the fence between black powder and smokeless for my old .43 (really 44/77).  I'll soon have a mold made, and I'm wondering what performance difference there might be in shooting a bullet made for black powder and using smokeless.
  
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Schuetzendave
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Re: Use a black powder bullet for smokeless?
Reply #1 - May 1st, 2014 at 2:07pm
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Should not be of much concern.
The black powder bullets have larger grease grooves to provide enough lubricant to keep your black powder residues soft.
The extra lube does not significantly affect the accuracy of smokeless powder loads.
The driving bands from the next bullet wipe out the surplus lube.
If you want to shoot black and smokeless with the same bullet; then better to have a black powder bullet that has big enough grease grooves for shooting black powder.

If only shooting smokeless then should have a bullet that has smaller grease grooves.

Accuracy is most affected by gas cutting around bullets that are too narrow for the barrel; bullet noses that do not fit the throat properly, using spitzer noses for long range shooting, or the bullet length is not stabilized by the barrel's twist.
« Last Edit: May 1st, 2014 at 2:13pm by Schuetzendave »  
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Chickenthief
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Re: Use a black powder bullet for smokeless?
Reply #2 - May 1st, 2014 at 5:03pm
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The biggest difference is that smokeless wont bump up a bullet so it is paramount that the bullet is at least .001" to big.
Second, you can just lube the bottom groove and get a fine result. Been there done that, great result!
  
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marlinguy
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Re: Use a black powder bullet for smokeless?
Reply #3 - May 2nd, 2014 at 11:06am
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I use a bullet designed for BP in my .44-77SBN, and it works well. I've also used some BP bullets a friend gave me that were lubed with SPG for BP, but loaded them with smokeless and they shot well too.
  

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Re: Use a black powder bullet for smokeless?
Reply #4 - May 2nd, 2014 at 12:39pm
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Have used a number of molds for my 38/55 best results have been with a large greese grove bullet intended for BP even with smokless powder

I think it's fit more than anything else

Boats
  
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John Boy
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Re: Use a black powder bullet for smokeless?
Reply #5 - May 2nd, 2014 at 6:20pm
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Quote:
I'm wondering what performance difference there might be in shooting a bullet made for black powder and using smokeless.
 
There were many bullet designs in the 1800's when black powder was the only gunpowder.  Then in 1892 the 1st semi smokeless powder, Shultze, was invented and these black powder bullet designs were used.  Then the turn of the century along came smokeless powder and the same BP designed bullets were used - including up to 2014.
It's not the bullet - it's the lube used on the bullet, either black powder or smokeless powder lube.  And there are lubes that work on both BP & smokeless reloads for those bullets designed in the 1800's
Three lubes for instance ... 
Bullshop NASA Lube
SPG
40% Mutton Tallow - 40% Paraffin and 20% Beeswax
« Last Edit: May 2nd, 2014 at 6:25pm by »  
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.22-5-40
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Re: Use a black powder bullet for smokeless?
Reply #6 - May 2nd, 2014 at 7:51pm
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When I first started loading cast in my Shillen barreled Borchardt .22 Hornet, I tried every available mould I could find.  Finally using an old Ideal 22636 60gr. mould, I cast up samples in Lyman #2.  These were chucked up in a bench lathe collet & faced to 50grs.  Some had gas check shank turned.  Therse prooved to be the most accurate to date..I sent off samples to Fred Leeth at Pioneer Products for nose-pour copies in plain-base & gas-check.
  
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marlinguy
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Re: Use a black powder bullet for smokeless?
Reply #7 - May 3rd, 2014 at 12:21pm
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Quote:
[quote]
There were many bullet designs in the 1800's when black powder was the only gunpowder.  Then in 1892 the 1st semi smokeless powder, Shultze, was invented and these black powder bullet designs were used. 


Interesting info! I thought Schultze was introduced in 1907 by Dupont? I have a 1907 ad here indicating it was something new then? Was this just a marketing thing for Schutze that was 15 yrs. old by then? Or was the original Schultze powder purchased by Dupont at the 1907 date?
« Last Edit: May 3rd, 2014 at 12:29pm by marlinguy »  

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