18 July 2008, 14:15
JohanvDuplicate load for old 300gr Winchester factory loads - How old are these?
Someone gave me 2 boxes of these, very old ammo to try. Took them to the range and what a surprise. For back ground - this was my first outing with my new .338wm Weatherby Vanguard, did not know what to expect as far as recoil or accuracy is concerned. After sighting the scope, took 3 shots at 100m - measured 24mm (0.94") then Since the area where I've booked a hunt was very dense, I tried them at 75m(82y), 3 shots in 8.8mm (0.34"). Fired both boxes and went back and bought the other 3 boxes he had left, for my trip. Shot a Impala ram at 171m. one shot kill. Would like to reload similar ammo, what should I use?
Pics are of the pacaging of the old Winchester ammo. Any idea how old the could be?
Front
Back
Side
18 July 2008, 18:14
butchlocnot that old - probably in the mid 60's
18 July 2008, 19:45
Johanvquote:
Originally posted by butchloc:
not that old - probably in the mid 60's
In general - What would the shelve life of loaded ammo be? Are there any safety issues with old ammo? These were super accurate, managed a 0.6" group at 100y the weekend.
I had to go back to one of my oldest manuals to even find a 300 grain bullet listed.......
It lists these maximum loads:
68.5 IMR4831
65.0 N205
59.8 WW760
I would bet that you could duplicate the factory round using 58.1 to 58.6 grains of WW760
19 July 2008, 17:38
Johanvquote:
Originally posted by PaulS:
I had to go back to one of my oldest manuals to even find a 300 grain bullet listed.......
It lists these maximum loads:
68.5 IMR4831
65.0 N205
59.8 WW760
I would bet that you could duplicate the factory round using 58.1 to 58.6 grains of WW760
Thanks, I'll have a look into it!
Johan