I recently aquired about 340 rounds of this ammo issued at Camp Perry in 1962. The head stamp is NM LC 62. It has a 173 gr bullet.
I bought it to shoot out of a 1957 Winchester M70 target with US property marks. I wish to shoot it at some 600 yard prone shoots. I have used some LC match ammo before with good results, but not sure of the date that ammunition was.....
Yesterday I test chambered a round, and to my surprise, the bullet came out a bit sticky and on the bullet are clearly the signs of the lands...I shot 6 rounds to zero the rifle, but not a very good group. It was cold and windy, however. Not a good test I am sure....No sticky extraction and only one had a hard turn down on the bolt to seat it. Primers appear normal as well.
Can you expect this once great ammo to shoot well at 50 years old? Should I worry about the bullets engaging the lands slightly? I think it has had some good storage conditions, in a GI ammo box sealed for many years. Boxes look like new.
When weather permits I will hang the scope on the M70 and see what it will do. Yesterday was with Target peeps, and my older eyes.