Hello everyone,
I recently acquired a Mod 70 300 Win Mag. I bought some 150 grains Power Point to sight in my rifle. I always sight in my rifle with factory loads from the manufacturer of the rifle if possible. The accuracy with these factory loads in a Win made rifle were below the acceptable, at 2.5-3 moa. Furthermore, from a box of 20 cartridges, 1 would not chamber in my rifle...
I unprimed the cases, full-length sized them, and weighed them. The weight was all over the place with more than 8 grains spread for 20 shot cartridges.
I also ordered 100 Win unprimed cases. I had to throw 10 in the garbage for case body or shoulder irreparable damage. 9 cases were below 2.61 in length. I had to resize all of the cases as the neck did not look good. Around 70 had a weight of 234+/- 1 grain.
I have a lot of respect for Winchester and their history in cartridge development but i don't know why they can not produce better quality ammunition and components consistently. My 150 grains PP shoots 0.5 moa in my 270 Win every day....
Federal Blue box was way more accurate and consistent. Needless to say, Lapua brass was perfect.
