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Cas City Forum Hall & CAS-L  |  Special Interests - Groups & Societies  |  The Barracks (Moderators: Delmonico, Pitspitr)  |  Topic: 2nd Allen conversion 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: 2nd Allen conversion  (Read 2544 times)
bear tooth billy
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« Reply #25 on: August 22, 2017, 05:21:04 pm »

I got my dies and loaded up some rounds that I shot this weekend. I loaded a few 515'' bullets on top of 60 gr 1 1/2 Swiss
at 150 yds it shot a 7'' group. I also loaded some 519" bullets exactly the same, and they shot a 6'' group. I slugged this
and came up with a 518" groove diameter. So I expected the 519" bullets to shoot a lot better. Again, I am new to these old
military guns, but my experience with Sharps rifles, I believe there would have been a big difference. The 1866's sights
are very hard for me to hold the same aim point. Do you guys use magnum primers, I haven't been. Any load suggestions
would be appreciated.  Thanks

                       BTB
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ira scott
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« Reply #26 on: August 22, 2017, 10:01:32 pm »

In the BP Cartridge Reloading Primer by Mike Venturino and Steve Garbe it says that they have found that a hot primer is necessary for accurate black powder shooting. Their recommendations are Federal's 210, 210 match and 215 magnum, and Winchester large rifle and large rifle magnum. They say they use the Federal 215 magnum exclusively. In a test at 200 yds. with three identical .40-70 loads other  than the primer the results were as follows: 1.  Winchester Lg. pistol primers   14 inches
                                                   2.  Remington 9 1/2 lg rifle primers 9 1/2 inches
                                                   3.  Federal 215 magnum lg rifle primers  4 inches
Good luck John,  I have faith you'll soon have that old girl shootin as good as yur buffler gun!

B.N.S.
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« Reply #27 on: August 22, 2017, 10:12:34 pm »

How did you measure the groove diameter?  Weren't these barrels 3 lands and 3 grooves?  Can be done, but not as easy as with an even number of lands and grooves. 
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OklaTom
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« Reply #28 on: August 23, 2017, 02:52:42 am »

As long as we are talking 50-70 Govtjere, at the last Muster I was shooting an Italian copyof the 1963 Sharps Carbine, 50-70. Actually, I have two of them. At the Muster, one of my carbines had the tab break off the extractor (ok, I still like to shoot full loads and sometimes, that Starline brass just gets stuck).  Anyway, the tab broke off, so manual extraction with something like a patch knife is required. I contacted Chiappa about a replacement, but that got me nowhere. They have crappy customer service. Any suggestions? I love shooting them, but at a Muster popping them out with a blade is impractical.
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« Reply #29 on: August 23, 2017, 05:59:30 am »

Are they close enough to an original to make it work?  I would assume not, but you never know.
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bear tooth billy
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« Reply #30 on: August 23, 2017, 06:22:24 am »

After slugging it, I measured from edge to edge of the lead that was in the groove, and moved it
around to get the largest measurement. I took it to work and had our maintenance guys measure with
2 different calipers, and we came up with the same. it's tricky getting just the right spot to get a
measurement. Tom, I just put in that spring in this one, it was worn and the brass was going over top
and had to pry every one over it. S&S has originals for $18, I have no idea if it will fit in yours though

                              BTB
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« Reply #31 on: August 23, 2017, 07:56:14 am »

Do you guys use magnum primers, I haven't been.
I only use Federal 215's in my BP Rifle loads
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bear tooth billy
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« Reply #32 on: October 30, 2017, 08:34:04 pm »

There is a new deer hunting regulation in Iowa that you can use straight wall cartridges under 1.8".
 I had the local DNR guy check and they decided the 50/70 is legal. Unfortunately the original sights
hit about 18'' high at deer range. I left the original sight and JB welded a sight ramp behind  it to
use a Marbles brass sight. I calculated wrong and now hitting a little low, but another sight is on the
way. The load shoots very well, and will be deer hunting in Dec.

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Cas City Forum Hall & CAS-L  |  Special Interests - Groups & Societies  |  The Barracks (Moderators: Delmonico, Pitspitr)  |  Topic: 2nd Allen conversion « previous next »
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