ohland
08-21-2014, 02:34 PM
My Lyman H&I Sizing Die, .501 diameter, p/n 2766525 arrived today. Shortly afterwards, it was mated with the Redding 73270 neck bushing.
114156
Yes, Virginia, it fits just so. There was a little roughness left over (between the die body and the plunger) that the first few insertion / removals smoothed out. Works pretty smoothly now.
114157
Had to figure out a simple way to show the depth of the bushing in relation to the Lub ports in the H&I die. This picture shows the neck bushing sitting above the lub ports. Can anyone say "solid pin"? With a solid pin below, and a washer above, the bushing probably will not push down or pull out during nose sizing. It appears to use a tight .125 point NOTHING lub port (mics .123 with calipers) and after I get some suitable pins, I'll might look at the Machinery Handbook to figure out the shear strength of 1018 steel (that is, if this lash up blows chunks, THEN I'll look it up). BUT... thanks to the almost parallel forces operating acing on the bushing, plus the four precisely spaced holes for supporting pins, things should be do-able.
First, thank you, Redding, for holding tight tolerances. Second, thank you Lyman for holding (?) your tolerances....
:coffeecom
114156
Yes, Virginia, it fits just so. There was a little roughness left over (between the die body and the plunger) that the first few insertion / removals smoothed out. Works pretty smoothly now.
114157
Had to figure out a simple way to show the depth of the bushing in relation to the Lub ports in the H&I die. This picture shows the neck bushing sitting above the lub ports. Can anyone say "solid pin"? With a solid pin below, and a washer above, the bushing probably will not push down or pull out during nose sizing. It appears to use a tight .125 point NOTHING lub port (mics .123 with calipers) and after I get some suitable pins, I'll might look at the Machinery Handbook to figure out the shear strength of 1018 steel (that is, if this lash up blows chunks, THEN I'll look it up). BUT... thanks to the almost parallel forces operating acing on the bushing, plus the four precisely spaced holes for supporting pins, things should be do-able.
First, thank you, Redding, for holding tight tolerances. Second, thank you Lyman for holding (?) your tolerances....
:coffeecom