DoctorBill
06-01-2021, 03:40 PM
.
.
I am fireforming some reworked 50-110 -> .43 Spanish Cases.
A thought came to my mind (REALLY !) that maybe a pure lead Cast Boolit
might cause less chamber pressure in the rifle
versus the same boolit cast from WW Alloy.
i.e. - Due to it deforming much more easily with lead than WW.....and getting
started down the barrel faster & easier.
Any thoughts based on experimental data - no opinions (Please) ? Data found in
literature ?
I would PRESUME, however, that given the speed of the powder burning and the
Inertia of the Boolits being nearly identical, that the pressure peak would be the same
for both metal compositions. Velocity (fps) might vary, but would PEAK chamber pressure ?
But then, who am I to know squat about that ? I don't want any 'facts' to get in the way.....
DoctorBill
PS - Found THIS online after Googling:
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/ubb/printthread/Board/34/main/601624/type/thread
Surprising answers ! Never "ASSume" !
.
I am fireforming some reworked 50-110 -> .43 Spanish Cases.
A thought came to my mind (REALLY !) that maybe a pure lead Cast Boolit
might cause less chamber pressure in the rifle
versus the same boolit cast from WW Alloy.
i.e. - Due to it deforming much more easily with lead than WW.....and getting
started down the barrel faster & easier.
Any thoughts based on experimental data - no opinions (Please) ? Data found in
literature ?
I would PRESUME, however, that given the speed of the powder burning and the
Inertia of the Boolits being nearly identical, that the pressure peak would be the same
for both metal compositions. Velocity (fps) might vary, but would PEAK chamber pressure ?
But then, who am I to know squat about that ? I don't want any 'facts' to get in the way.....
DoctorBill
PS - Found THIS online after Googling:
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/ubb/printthread/Board/34/main/601624/type/thread
Surprising answers ! Never "ASSume" !