Author Topic: 45-70 BP casting mix?  (Read 685 times)

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Offline Will52100

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45-70 BP casting mix?
« on: August 09, 2005, 06:39:26 PM »
I have a Uberti high wall in 45-70 and was wondering what the best mix of lead would be for a 500 grain bullet backed by black powder?  The rifling is fairly shallow compared to some black powder rifling I've seen but is very smooth.

I have wheel wieghts and pure lead(or least dead soft, may have a little tin, not much)

The rifle with a BP load chrono's at just under 1200 fps.  Would pure lead be too soft for this?

I have my ignots cast into 1lb. blocks, so any mixing would be 3 parts lead to 1 part WW, something like that.

This is not a competition rifle, nor a hunting rifle, just a "fun gun".  Or least it will be when I get a recoil pad on mule kicking thing!

Any suggestions would be greatly apreciated.
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Offline powderburner

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45-70 BP casting mix?
« Reply #1 on: August 10, 2005, 04:53:14 AM »
a lot of people have a lot of different ideas .that said , my experiances has been if you shoot a softer alloy you can size a bit smaller . ie if your sizing die isnt exactly right , and the bullets will bump up to seal off the gasses . when I use WW I find I need to size the bullets a bit largeet 1 to 2 thousands over size as they will not seal as well unless I do .the most important thing is to get a good black powder lube and be sure it is bp lube and even try a few different ones ,other than that all lead will shoot with what you are going to do with your gun .almost always the leading is caused bu a poor lube, and smokeless lubes do not work well with black.

 these rifles are all individual and all have their likes and dislikes shoot it a lot and as a couple good shooters say let the rifle tell you what it likes .................... Dean

Offline Will52100

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45-70 BP casting mix?
« Reply #2 on: August 10, 2005, 07:12:06 AM »
Thanks, I think next I'll try pure lead and see what happens.
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Offline Leftoverdj

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45-70 BP casting mix?
« Reply #3 on: August 10, 2005, 07:19:07 AM »
Will, my accuracy improved when I went to 50/50 lead/ww in the .45-70. Haven't gotten around to trying straight lead yet.
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Offline dodd3

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45-70 BP casting mix?
« Reply #4 on: August 31, 2005, 01:52:52 AM »
for hunting i cast pure lead when shooting black powder and low smokeless loads you have to use a good lube that will stop leading .
bernie :-)
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Offline hdj2520

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45-70 BP casting mix?
« Reply #5 on: August 31, 2005, 08:36:16 AM »
try a 1/20  tin to lead  with s.p.g. lube.