Not to seem too critical, but I'm willing to bet that NONE of these rifles, or receivers, were "factory" beyond the federally mandated stamp.
Could I also mention that there are other competitions than the Pa. 1000 yard competition? I'm sure that a 1000 yard Kool-Aid drinker
thinks that his match is the only one, but it's just not true.
Maybe membership in the Flat Earth Society is necessary to believe that this is the only competition?
Perhaps it's also in an alternate universe?
OK, have I returned all of the silly comments properly? See, it works on both sides of the discussion.
Somebody droned on about unscrewing barrels and saving money on gunsmiths, but that's specious, too. It's not like the eight Remington actions were untouched by a gunsmith. That would be an embarrassing joke if that were attempted. The entire idea of the barrel nut is to allow proper head-spacing to be set at minimums, something that other production guns all too rarely enjoy.
Before anyone says that something isn't used in competition, please define what you're considering as competition. You won't find many 426 Hemis in Formula one, but you will in drag racing.
If the best that can be done is to rant on about competition, this thread is deader than the proverbial door-nail.
The OP asked about what he'd bought. It will be a fine rifle. The 7.62x63 is also a good cartridge, and more versatile than the 7.62x51 for hunting a wider variety of big game. Enjoy. If you're planning on entering a 1000 yard competition in Pennsylvania, I'm sure that USSR will be around to help.