kopcicle
06-06-2023, 04:46 PM
Again.
When I first asked this question, the answer was as easy as picking up the phone and placing the order. No longer is this the case.
What I'm looking for is a .452-.453" Hollow base wadcutter, 350-400gr.
Lube grooves aren't terribly important, yet.
The "knurled" exterior of some popular airgun projectiles would be sufficient.
Then the rabbit hole appears.
What kind of pressures would it take to form, that is swag or crush lead into a mold rather than casting?
I have a little time on my hands this winter and will be trying mechanical leverage as well as hydraulic advantage.
I'm hopeful that someone here knows more about this. I'd hate to re-invent the wheel again.
As this moves along, I'll have to dig out my information from decades past and begin load development for another version of the flying manhole cover.
To give a hint of what it took...
1911 loosely based on the Ser. 70 MK IV
Rifle brass. 6.5x55 Swede or .308 .
Curious modifications to a ramped barrel.
Firing pin stop plate modifications to include a flat bottom and full-face contact with the hammer face.
Linked or linkless? I have no idea even after trying both.
Curiously a piece of leather was the most reliable shock buffer and diagnostic tool.
balancing act between the recoil and mainspring.
Initial testing was performed with the projectiles turned on a lathe.
If you haven't tried it, I should advise that feeds and speeds are not what you would imagine.
Lead turning can be frustrating.
Last but not least these are loaded upside down with the hollow base forming a huge cavity.
This sequel is just in the planning stage. Most of the tools and tooling is here.
The frame is on the way. The barrel and small parts are already here.
Updates as they happen.
When I first asked this question, the answer was as easy as picking up the phone and placing the order. No longer is this the case.
What I'm looking for is a .452-.453" Hollow base wadcutter, 350-400gr.
Lube grooves aren't terribly important, yet.
The "knurled" exterior of some popular airgun projectiles would be sufficient.
Then the rabbit hole appears.
What kind of pressures would it take to form, that is swag or crush lead into a mold rather than casting?
I have a little time on my hands this winter and will be trying mechanical leverage as well as hydraulic advantage.
I'm hopeful that someone here knows more about this. I'd hate to re-invent the wheel again.
As this moves along, I'll have to dig out my information from decades past and begin load development for another version of the flying manhole cover.
To give a hint of what it took...
1911 loosely based on the Ser. 70 MK IV
Rifle brass. 6.5x55 Swede or .308 .
Curious modifications to a ramped barrel.
Firing pin stop plate modifications to include a flat bottom and full-face contact with the hammer face.
Linked or linkless? I have no idea even after trying both.
Curiously a piece of leather was the most reliable shock buffer and diagnostic tool.
balancing act between the recoil and mainspring.
Initial testing was performed with the projectiles turned on a lathe.
If you haven't tried it, I should advise that feeds and speeds are not what you would imagine.
Lead turning can be frustrating.
Last but not least these are loaded upside down with the hollow base forming a huge cavity.
This sequel is just in the planning stage. Most of the tools and tooling is here.
The frame is on the way. The barrel and small parts are already here.
Updates as they happen.