Unfortunately, I am currently in the United States, specifically, in California, I say unfortunately because although I love it here, it is impossible to find this 7,62 x 53R stuff which, I believe, is the proper ammunition, cartridge dimensions, etc., for range for my Finn M28.
I have heard rumor that Sako is starting to import this into the U.S. again, the 7,62 x 53R stuff. However, after poking around all I have found out so far is that Beretta is the U.S. supplier for Sako, and I don't know if Beretta is just focusing on their gun sales or if in fact they are beginning to sell Sako 7,62 x 53R ammo in the U.S.
Based on discussions with people out at a nearby range, I have been told that it is advisable to use 7,62 x 53R if it can be found, for the M28, and some people have also recommended that the grain be 147 grains or close to it for the powder, although there is certainly tolerance in the SIG barrel.
There are four 7,62 x 53R cartridge types ready to shoot sold by Sako, which I cannot figure out how to purchase (in the United States), yet. There are no laws keeping me from it, the problem seems to be it is infrequently if ever sold in the U.S. (or perhaps I am just dumb about it and can't find out where it is being sold). These four Sako cartridge types are:
https://www.sako.fi/cartrid_centrefire.php
7.62x53R Speedhead
7.62x53R Super Hammerhead
7.62x53R Hammerhead
7.62x53R Range Hammerhead
I think for my purposes the 7.62x53R Range Hammerhead would be great assuming it in fact does meet the dimensions of the 53mmR cartridge as follows:
53mmR Round length: 77.00 mm
53mmR Case length: 53.50 mm
53mmR Rim diameter: 14.40 mm
53mmR Bullet diameter: 7.83 mm
I think I will not want to go through trying to purchase this stuff more than a few times so, first I am looking for fireable ammunition ready to go, but after that I will need to obtain the reloading dies, which for some reason ARE available easily here in the United States.
So with that said, does anyone have any thoughts as to how I can obtain this seemingly rare ammunition which I am sure is not actually that rare at all?
And perhaps if the round is being used for the TaK 85 in Finland, is there military surplus available?