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Mar 29th, 2024
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Joined: Nov 2022
Posts: 11
Boxlock
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OP
Boxlock
Joined: Nov 2022
Posts: 11 |
What are peoples feelings on reaming out the chamber so I can load low pressure 2-3/4 shells. I have a MEC progressive loader that was my grandfathers that I’d like to reload with. Obviously I would not shoot modern 2-3/4 factory loads through it.
Last edited by AndrewB; 12/09/22 01:33 PM.
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Joined: Jan 2002
Posts: 7,703 Likes: 102
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 7,703 Likes: 102 |
What are peoples feelings on reaming out the chamber so I can load low pressure 2-3/4 shells. I have a MEC progressive loader that was my grandfathers that I’d like to reload with. Obviously I would not shoot modern 2-3/4 factory loads through it. Folks say if there is sufficient barrel thickness there's no harm. I say removing any metal from a barrel where the detonation takes place is a mistake. I bet there is a way to adjust your MEC to load 2.5" shells...Geo
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Joined: Dec 2006
Posts: 1,521 Likes: 20
Sidelock
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Sidelock
Joined: Dec 2006
Posts: 1,521 Likes: 20 |
Andrew:
I've had great success shooting low pressure (sub-7500 psi) 2-3/4 inch reloads in 2-1/2 inch chambers. I use the data out of the Lyman reloading manual and have found that Clays powder lets you get a load that is low pressure with 7/8 or 1 ounce of shot.
If you measure your fired hulls, you'll find some of the nominally 2-3/4 inch hulls are more like 2-11/16 inch or even slightly shorter. The crimped section does not extend the entire length of the forcing cone, which I think would help keep pressures lower than a longer hull might.
Winchester AA hulls seem to be the shortest of the hulls in my assortment, but I don't load Federals or Cheddites, except in 10 gauge, so you'd have to check them to see how they might measure.
Rem
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Joined: Nov 2022
Posts: 11
Boxlock
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OP
Boxlock
Joined: Nov 2022
Posts: 11 |
Andrew:
I've had great success shooting low pressure (sub-7500 psi) 2-3/4 inch reloads in 2-1/2 inch chambers. I use the data out of the Lyman reloading manual and have found that Clays powder lets you get a load that is low pressure with 7/8 or 1 ounce of shot.
If you measure your fired hulls, you'll find some of the nominally 2-3/4 inch hulls are more like 2-11/16 inch or even slightly shorter. The crimped section does not extend the entire length of the forcing cone, which I think would help keep pressures lower than a longer hull might.
Winchester AA hulls seem to be the shortest of the hulls in my assortment, but I don't load Federals or Cheddites, except in 10 gauge, so you'd have to check them to see how they might measure.
Rem That’s the logic I was kind of operating on, but turns out they already were reamed to 2-3/4. Took it up to the gunsmith after work and they measured and confirmed. Makes loading easier for sure.
Last edited by AndrewB; 12/09/22 08:10 PM.
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