Winchester factory round dissected
A friend of mine named Forrest, who works part-time at the mercantile a few miles up the road, dismantled a factory round for me, since I have not the type of puller needed. I picked it up from the Mercantile today. The components were in a small plastic bag of the type small parts may be shipped/displayed in. Forrest didnt say, but Im assuming that the powder in the bag is the entire charge that was in the case before he pulled the bullet. He used an inertia-type puller so it wouldve been easy to contain the charge.
CASE:
Headstamp- W-W and 38-55 Win
Straight case i.e. no outer groove; no annealing marks evident.
Length- 2.078(all measurements taken with SS dial caliper).
A loaded round out of the same box measures .393 just behind the crimp.
POWDER:
Weight- 18.0 grains
Type- short-granule; extruded (possibly H-4350SC? Granules are slightly longer than
H-4895 and a bit thicker)
BULLET:
Type- Jacketed RNFP with cannelure.
Weight- 254 grains
Diameter- .375
