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Hot Topic (More than 10 Replies) 25 20 ss ? (Read 6881 times)
rkba2nd
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Re: 25 20 ss ?
Reply #15 - Oct 21st, 2019 at 8:33pm
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I feel that unless ram, bore, and die are in perfect alignment, best to have brass a little loosey- goosey to allow it to enter the die and center itself. Some put a rubber o-ring between the die and press to accomplish a similar result. It is one of the reasons some like a Bonanza coaxial press. I would suspect that some dies are not cut concentric to the threads, and this would help some with that problem.
  

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notlwonk
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Re: 25 20 ss ?
Reply #16 - Oct 22nd, 2019 at 8:06am
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I've used around 9 grs. of Reloader 7 with a 118 gr. MOS bullet with good results. Just need to find a way to reclaim all the unburned powder for future use. Smiley
  
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oneatatime
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Re: 25 20 ss ?
Reply #17 - Oct 22nd, 2019 at 12:09pm
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OK notlwonk, what is your twist? I guess the only way to post meaningful load data here is to provide the twist rate and whether breech loading or not. And, as regards using a .223 shell holder (RCBS #10), some Jamison/Captech brass has some rim discrepancies that just need a little touch of a file.
« Last Edit: Oct 22nd, 2019 at 12:18pm by oneatatime »  
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Green_Frog
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Re: 25 20 ss ?
Reply #18 - Oct 22nd, 2019 at 7:18pm
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oneatatime wrote on Oct 21st, 2019 at 3:39pm:
Interesting, but I wonder how many rifles (other than the high walls and 44 1/2 Stevens) got cracked or shot loose with some of that data.


I don’t know whether this was the reason, but the only original low wall I’ve ever owned that was stretched noticeably with “normal” shooting(???) was... a 25-20!!

As mentioned earlier, I’m building a 25-20 low wall now (on an un-stretched frame) using the Green Mtn barrel factory profiled for a small lever action.  It will only get mild target loads.  I do have the early Perfection mould marked simply “25-20” which became the 25720 as cherry numbers were standardized.  This past weekend Willis (singleshot) Gregory took home bullets from it (80 gr length) and the 257283 (85 gr) to make me some inserts for my repro Pope lube pump, so I’m getting there!

Froggie

PS  Maybe I ought to have an insert for the longest (90 gr) bullet from the 25-20 Perfection cut as well... I don’t remember (if I ever knew) the twist rate of that GM barrel, and even 5 gr makes a difference in the length of a 25 cal bullet. Wink
  
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beltfed
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Re: 25 20 ss ?
Reply #19 - Oct 22nd, 2019 at 10:53pm
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AS a person should, tho I have the OLD Sharpe book data, I started Low for charging my low wall 2520 ss.  Just as
I do for ALL published or recommended data, even direct 
from powder companies
beltfed/arnie
  
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notlwonk
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Re: 25 20 ss ?
Reply #20 - Oct 23rd, 2019 at 9:03am
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oneatatime wrote on Oct 22nd, 2019 at 12:09pm:
OK notlwonk, what is your twist? I guess the only way to post meaningful load data here is to provide the twist rate and whether breech loading or not. And, as regards using a .223 shell holder (RCBS #10), some Jamison/Captech brass has some rim discrepancies that just need a little touch of a file.


TJ's liner 10 twist and breech seated in a Stevens tip up.
The batch of JBA brass I got wouldn't chamber, had to rework the cases a little. Still better than almost any of the original cases I've come across, Remington, Winchester and UMC  all have a high rate of first shot case failure. And yes they were annealed before firing!
  
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Green_Frog
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Re: 25 20 ss ?
Reply #21 - Oct 23rd, 2019 at 11:04am
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Notlwonk, 

I’m wondering whether you might have a chamber discrepancy.  Years ago I bought a grocery bag of factory ammo, all about forty or more years old and much of it corroded.  Those I’ve shot in my original Winchester barrel (on a high wall) have been split-less in the factory loads.

Froggie
  
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50target
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Re: 25 20 ss ?
Reply #22 - Oct 23rd, 2019 at 1:12pm
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JSB30 wrote on Oct 21st, 2019 at 5:55pm:
Shell holder for 25-20 SS no longer made and most people use the one  for a .223 which may be what you have.


I ordered dies and shell holder from CH & works fine.It is marked 2R

Bob
  
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plumb
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Re: 25 20 ss ?
Reply #23 - Oct 23rd, 2019 at 1:42pm
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shotmy1885 lw 25 20 first time buffalo bp cartrige firts shoots seemed to group 3"50yards windy. afterthat they seemed to be all over the place
  
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notlwonk
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Re: 25 20 ss ?
Reply #24 - Oct 23rd, 2019 at 4:11pm
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Green_Frog wrote on Oct 23rd, 2019 at 11:04am:
Notlwonk, 

I’m wondering whether you might have a chamber discrepancy.  Years ago I bought a grocery bag of factory ammo, all about forty or more years old and much of it corroded.  Those I’ve shot in my original Winchester barrel (on a high wall) have been split-less in the factory loads.

Froggie


The reamer was a rental and had a shallow lead angle, and minimum dimensions. probably meant for the MOS or similar bullet. I don't have sizing dies, don't believe I'll bother them. Most of the case were black powder loads and had some degree of internal corrosion.
  
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