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Hot Topic (More than 10 Replies) Shooting a 30-20 with BP in a single shot - part 2 (Read 10266 times)
MartiniBelgian
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Re: Shooting a 30-20 with BP in a single shot - part 2
Reply #15 - Apr 22nd, 2015 at 10:58am
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Just an update - I tried some Swiss Fg last weekend, for the 1st time at 100m, and other than a POI about 3-4 MOA lower than with 1 1/2Fg, no special issues:
Pretty good accuracy if I did my thing, and no special fouling issues  with half a breath down the tube, followed by a single dry patch.
Seems like she'll swallow just about anything and do well.  The loads were dropped with a powder measure (Lee perfect powder measure), not weighed, so there probably was some variation in weight there.
The buttplate has been changed to  a more traditional one (english-style red rubber), the intention now is to get her match ready (season starts the 1st of may).
meanwhile, I'll also experiment with a different lube and fireformed cases,to see what gives.
Still looking for a BSA model 8 rear tang sight though...
  
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MartiniBelgian
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Re: Shooting a 30-20 with BP in a single shot - part 2
Reply #16 - Apr 26th, 2015 at 3:58pm
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Last update - finally tried some fireformed cases today, with slip-fit bullets.  When I thought the rifle/cartridge combination already shot pretty well with unformed brass  and neck tension, I was wrong.   
With the same load, same bullet and CCI small pistol primers, that little Martini shoots lights out.  Like producing ragged holes at 75m, from the prone, unsupported position - 2 point sling only and aperture sights.  I normally don't shoot 10 shots under 2 MOA like that...

I'll try and post the target tomorrow.
  
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nuclearcricket
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Re: Shooting a 30-20 with BP in a single shot - part 2
Reply #17 - Apr 26th, 2015 at 4:18pm
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Damn, sounds like you got a shooter on your hands. I had often thought of a 32-20 for my CPA for off hand practice and when I talked to CPA about it they had suggested a 14" twist barrel. Seems to me you have a winning combination on your hands. 
Thanks much for keeping us updated on this project.
Sam
  
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MartiniBelgian
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Re: Shooting a 30-20 with BP in a single shot - part 2
Reply #18 - Apr 27th, 2015 at 1:37am
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If all goes well, this should be the target : Smiley

Shot at 75m, prone, with sling, no rest
Starline brass
CCI sp primer
16.7grs of Swiss 1 1/2Fg
Card wad 
151gr 16/1 RN bullet, lubed with White lightning lube

And the nut behind holding his tongue just right when pulling the trigger - and by no means did I get all perfect let-offs.
  
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MartiniBelgian
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Re: Shooting a 30-20 with BP in a single shot - part 2
Reply #19 - Oct 17th, 2015 at 1:13pm
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The new mould arrived from Leo - this one for a PP bullet.  I cast and patched up some bullets, loaded some cartridges.     We'll see tomorrow how it does.  Same load, same bullet design as for the GG bullet.  It is a bore-dia. bullet patched up to groove diameter.     Planned regime is to wipe with 2 wet, 1 dry - and see how she shoots...
  
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