todd9.3
New member
i bought a husky m46 in 9.3x57. https://www.simpsonltd.com/products/z24767 i also got 9.3x57 dies, 8x57 prvi brass and 285gr prvi rn. i have a pound of imr4895 but i'm going to get h4895.
the hornady die does have a "new fangled tapered expander balls." so i sprayed lube the 8x57 prvi cases and the fl sizing die. when the 8x57's were done drying, then i lube up the inside neck, i was using lanolin paste/wax/anhydrous(don't know, but its like vasoline). then i'd take the cases into a 9.3x57 fl sizing die, it would be 2 - 3 times(upstroke) till the 8mm was upsized to 9.3mm. ( i only did the neck of the case, i left about 1/8" gap between the die and the shell holder)
next it was the wet tumbler. when the new 9.3x57 was dry, i trimmed and deburred them(2.215", they were 2.220"). i know that the norma 9.3x57 cases are 2.240" but my cases(8x57) are .025" smaller. not enough to worry about.
i took a case and a bullet and put them in a bullet seater die. i seated the bullet about a 1/8" into the case. next i took the rifle out and put the dummy round in. twice!!!! the dummy round only pushed the bullet about 1/8" in(about 1/4"). my magazine will have nothing to do with the 9.3x57 because of its length (it don't fit, 3 3/4"). too much free bore, i think. i then began to seat the bullet (magazine length). i did seat it to the magazine length, but i seated the bullet deeper, about a 1/8", (3.115") to give room.
to fire form the 9.3x57 i put in the primer, put in the charge and i topped it off with a bullet. (i'm going layman here) then i fired it. the charges were 42.0gr, 43.0gr, 43.5gr, 44.0gr and 44.5gr of imr4895/ 285gr prvi rn.
i could find no pushed out primers or soot on the cases. the shoulder of cases was pushed back and formed.
case measurement(avg. COL)
not fire formed - 2.215" COL
fire formed - 2.218" COL
fire formed and resized - 2.222" COL
in fire forming my cases(42.0-44.5gr of imr4895) i did expect the 9.3 to "kick". it was more along the lines of a "push". (kick is right now!!! and a push-it will get there, eventually
). i'd say the 9.3x57 is like your 30-06(7.5lbs) and 180gr bullet. i didn't get the accuracy or the fps, i was just shooting at the middle of target stand. from info i gathered, i could go up the charge(imr4895) about a 1 or 2, but i'll be cautious of it.
next year, i want to find a mould that goes 270-280gr fn gc in .368". it will be a clip on wheel weight(coww) and 1 or 2% tin(12ish bhn). i do have one question tho, is the 285gr prvi rn good enough for whitetail and black bears out to 150 yards? 50 yards and under is more likely tho!!!
left case IS NOT fire formed, right case IS fire formed
the hornady die does have a "new fangled tapered expander balls." so i sprayed lube the 8x57 prvi cases and the fl sizing die. when the 8x57's were done drying, then i lube up the inside neck, i was using lanolin paste/wax/anhydrous(don't know, but its like vasoline). then i'd take the cases into a 9.3x57 fl sizing die, it would be 2 - 3 times(upstroke) till the 8mm was upsized to 9.3mm. ( i only did the neck of the case, i left about 1/8" gap between the die and the shell holder)
next it was the wet tumbler. when the new 9.3x57 was dry, i trimmed and deburred them(2.215", they were 2.220"). i know that the norma 9.3x57 cases are 2.240" but my cases(8x57) are .025" smaller. not enough to worry about.
i took a case and a bullet and put them in a bullet seater die. i seated the bullet about a 1/8" into the case. next i took the rifle out and put the dummy round in. twice!!!! the dummy round only pushed the bullet about 1/8" in(about 1/4"). my magazine will have nothing to do with the 9.3x57 because of its length (it don't fit, 3 3/4"). too much free bore, i think. i then began to seat the bullet (magazine length). i did seat it to the magazine length, but i seated the bullet deeper, about a 1/8", (3.115") to give room.
to fire form the 9.3x57 i put in the primer, put in the charge and i topped it off with a bullet. (i'm going layman here) then i fired it. the charges were 42.0gr, 43.0gr, 43.5gr, 44.0gr and 44.5gr of imr4895/ 285gr prvi rn.
i could find no pushed out primers or soot on the cases. the shoulder of cases was pushed back and formed.
case measurement(avg. COL)
not fire formed - 2.215" COL
fire formed - 2.218" COL
fire formed and resized - 2.222" COL
in fire forming my cases(42.0-44.5gr of imr4895) i did expect the 9.3 to "kick". it was more along the lines of a "push". (kick is right now!!! and a push-it will get there, eventually
next year, i want to find a mould that goes 270-280gr fn gc in .368". it will be a clip on wheel weight(coww) and 1 or 2% tin(12ish bhn). i do have one question tho, is the 285gr prvi rn good enough for whitetail and black bears out to 150 yards? 50 yards and under is more likely tho!!!
left case IS NOT fire formed, right case IS fire formed
