This is for those that were using the 222 in the 1960's. The rifle is an off the shelf 1966 Sako Vixen, bedded, trigger tuned and crowned only. What were these rifles capable of in group size if you had a decent one? (100 yd) not the occasional group but realistically. I have one that I feel shoots better than it should for a 50+ year old rifle and curious what they were doing back then.