500 S&W MIHA 390-GN POINTY-GC BULLET FIRST TEST RESULTS
The following informatim is the first results from casting this bullet.
Hornady gas checks no longer available first used for test.
Waiting for Sages copper gas checks to test comparison.
Sages 0.458 Aluminum gas checks came off with this test.
For comparison data included the LBT 440-LFN-GC bullet design
LBT 440-LFN-GC DATA:
CAST WEIGHT 440-GN AVG.
FINISHED WEIGHT 460-GN AVG.
SHANK DIA. 0.459"
HORNADY & ALUMINUM GAS CHECKS ARE SEATED ON TIGHT, NO PROBLEM
MIHA 390-GN POINTY-GC DATA:
CAST WEIGHT 360-GN AVG. CASTING A LITTLE LIGHT
FINISHED WEIGHT 375-GN AVG.
SHANK DIA. 0,454" THIS IS THE MAJOR CONCERN, UNDERSIZE SHANK DIA.
HORNADY GAS CHECKS SEAT BUT SPIN ON SHANK, NOT POPPING OFF.
LEAD WAS MIXED HARD AND MAY RESULT IN A SMALLER SHANK DIAMETER.
WAITING TO TEST SAGE'S COPPER GAS CHECKS TO SEE IF ANY DIFFERENCE.
Ran bullets thru Star Sizer to Lube, Size and Seat Gas Check
The Question: Has anyone else reached this point?
Would like to know what you are getting for the shank diameter.
Thank You