I agree with Jon that the white-tip bullet doesn’t look Russian, but I don’t know this caliber very well. There was a place in the Northwest (Washington) that used to make “specialty” ammo by pulling bullets and putting other bullets in various cases, really muddying up the waters for collectors and students of small arms ammunition. They were not any too careful about dimaters, either - .308s in rounds that should have .312s (nominally), etc. They seemed to buy surplus lots of projectiles of various types and then use surplus ammunition to make up specialty loads. I wish I could remember where they were and the company name. I think they were in Washington State. Don’t know if they are still in business or not.
The white tip 7.62 x 54R is the sort of thing they would do. I am not saying they did it, by the way. As far as I know, it could be Russian-original, although it doesn’t look it to me, as a person who has handled a lot of ammo in this claiber, but not really studied it.