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Hot Topic (More than 10 Replies) 25-20 SS (Read 433 times)
Dellet
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Re: 25-20 SS
Reply #15 - Feb 11th, 2026 at 4:38pm
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Need to figure out the  chamber diameter at the neck. If you want to use a .257” bullet and the loaded round is .280”, the chamber needs to be .282” minimum. So if you can’t chamber something .281-.283”. It’s probably time to turn the necks.
  
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bullshop
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Re: 25-20 SS
Reply #16 - Feb 11th, 2026 at 11:41pm
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I tried chambering a cartridge loaded with a .259" bullet and it was jamming badly.  Extraction was difficult and the case neck showed the signs of being squeezed.
With a .257" bullet there is no such condition.  Loaded rounds chamber and extract easily.
I started using some gas checked bullets today and with those I didnt even have to bell the necks to get bullets started.
   It just cant get any better than that to never have to do any kind of sizing, just de-prime, re-prime ,drop powder, seat bullet.
Perfection !
  
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