hi everybody.first time here. my question is about my saiga ak 47.7.62x51. 308 when i bought the weapon the ammo i was told to use was remington .308 winchester. i just bought ammo from sportsmans guide.before i bought it i asked if this ammo would work in my rifle and i was assured that it would. when the ammo arrived it was a different size. longer. will this ammo work in my ak. 20 patrone. 7.62x51.dm 111. weichkern.