HI FRIENDS,
MY GOAL WAS TO DEVELOP A LOAD THAT WOULD PROPEL A 40 CAL. 180 GRAIN, LEAD PSP BULLET PROVIDED IN A SABOT ( THE DARK BROWN ONE ) AS SOLD BY KNIGHT, AT A VELOSITY OF 2500+ FPS..
A PERSON AT KNIGHT SAID THAT THE BROWN SABOT HAS BEEN TESTED AT 2600 FPS WITHOUT SHEDDING PLASTIC IN BARRELS. SO MUCH FOR THAT PART...
HOW ABOUT POWDER AND QUANTITY ? HODGDONS SAYS THAT 11.5 GRAINS OF clays UNIVERSAL WILL DRIVE A 260 GRAIN JACKETED BULLET AT 1300 FPS. SO, I CHOSE 11.0 GRAINS OF THAT POWDER TO TEST.
I USED WINCHESTER SMALL RIFLE MAGNUM PRIMERS. THIS SHOULD BE OK, RIGHT ?
BUT, WHAT ABOUT CHAMBER PRESSURE ? I NEED YOUR IDEAS HERE.
ALSO, WHAT KIND OF VELOSITY CAN I EXPECT ? THE PLASTIC SABOT WITH ITS .40 CAL LEAD BULLET SHOULD HAVE A LOWER COEFFICIENT OF FRICTION THAN THE KNOWN JACKETED BULLET DATA. I'M GUESSING THAT FRICTION WOULD BE SO MUCH LESS WITH THE PLASTIC SABOT, THAT I'M HOPING FOR THAT 2500 FPS GOAL I SET FOR MYSELF. DOES ANYONE HAVE ANY DATA THEY CAN PROVIDE ME ?
ACCURACY IS SOMETHING ELSE AGAIN AFTER I'M FAIRLY CONVINCED MY RSRH WILL REMAIN INTACT AND ALL MY SEMI-MATCHED BODY PARTS REMAIN ATTACHED IN THEIR CURRENT LOCATIONS. BUT CAN ANYONE GIVE AN IDEA OF WHAT SIZE OF A THREE SHOT GROUP COULD BE EXPECTED ?
ANY COMMENT, CRITICISM OR DATA THAT ANYONE CARES TO SUBMIT WILL BE ACCEPTED BY ME AS BEING "FRIENDLY" AND NOT DEROGATORY. LET YOUR MINDS FLY FREE !
CSWARD
MY GOAL WAS TO DEVELOP A LOAD THAT WOULD PROPEL A 40 CAL. 180 GRAIN, LEAD PSP BULLET PROVIDED IN A SABOT ( THE DARK BROWN ONE ) AS SOLD BY KNIGHT, AT A VELOSITY OF 2500+ FPS..
A PERSON AT KNIGHT SAID THAT THE BROWN SABOT HAS BEEN TESTED AT 2600 FPS WITHOUT SHEDDING PLASTIC IN BARRELS. SO MUCH FOR THAT PART...
HOW ABOUT POWDER AND QUANTITY ? HODGDONS SAYS THAT 11.5 GRAINS OF clays UNIVERSAL WILL DRIVE A 260 GRAIN JACKETED BULLET AT 1300 FPS. SO, I CHOSE 11.0 GRAINS OF THAT POWDER TO TEST.
I USED WINCHESTER SMALL RIFLE MAGNUM PRIMERS. THIS SHOULD BE OK, RIGHT ?
BUT, WHAT ABOUT CHAMBER PRESSURE ? I NEED YOUR IDEAS HERE.
ALSO, WHAT KIND OF VELOSITY CAN I EXPECT ? THE PLASTIC SABOT WITH ITS .40 CAL LEAD BULLET SHOULD HAVE A LOWER COEFFICIENT OF FRICTION THAN THE KNOWN JACKETED BULLET DATA. I'M GUESSING THAT FRICTION WOULD BE SO MUCH LESS WITH THE PLASTIC SABOT, THAT I'M HOPING FOR THAT 2500 FPS GOAL I SET FOR MYSELF. DOES ANYONE HAVE ANY DATA THEY CAN PROVIDE ME ?
ACCURACY IS SOMETHING ELSE AGAIN AFTER I'M FAIRLY CONVINCED MY RSRH WILL REMAIN INTACT AND ALL MY SEMI-MATCHED BODY PARTS REMAIN ATTACHED IN THEIR CURRENT LOCATIONS. BUT CAN ANYONE GIVE AN IDEA OF WHAT SIZE OF A THREE SHOT GROUP COULD BE EXPECTED ?
ANY COMMENT, CRITICISM OR DATA THAT ANYONE CARES TO SUBMIT WILL BE ACCEPTED BY ME AS BEING "FRIENDLY" AND NOT DEROGATORY. LET YOUR MINDS FLY FREE !
CSWARD