I have a 300 stainless 300WSM coming. origionaly I was going to use it on a 300 savage 0r 308x39 or 7.62x25 rechambering. I got to staring at the case last night and also the reloading books and other stuff an putting it in differant mags and Im convinced that it could be done on a Saiga 308.
The bolt thrust increse would increase as the case head is .551 so im not certain what the 308 sagia can handel and full pressure magnum loads might be out but there was some really interesting starting and medium loads that will out perform the 308 and the 30-06 at sane pressures. you can get a 150 grain going over 3000 fps at under 50,000PSI.
i havent done the math ( cant I dont now how) but Im thinking if one rebated the rim as there is no way in hell im messing with my bolt face, that a damm good round could be made for long range shooting with the high BC 200 grain stuff. Im going to hit one of them damm praire dogs at 1000 yards with a AK variant if it kills me trying. the 270 shoots really flat as well and there are some 6.5 wild cats as well.
also the 280 remington is a doable round on these guns and all the other rounds based on it. the 6.5-280 is really popular and brass is being made.
the 280 brass is already rebated btw and fits the bolt as is I was considering a version(6.5-280) of it on a two lug action with super long barrel and slow powder and 40,000 PSI pressures it would have some velocity gains if loaded light over the 308 family of brass. I might be able to reach high pressure 260 remington speeds this way in a 2 lug build at lower pressures.
If I get this threaded trunion thing figured out for switch barrels I might try doing it to My 308 sagia and screw on a WSM or 6.5x280 barrel.
I have this virgin POS sagia that is useless as is calling my name.
Maybe USdrgonove (spelling) can ask them boys what will a 308 Saiga handel along with the same questions for the two lug stuff.
A 1-8 twist 300 WSM witha 30" heavy barrel would reach out and touch something nad make a big hole in it