I just bought some Lake City match 7.62mm....I couldnt resist......Then I remembered reading that 168gr was the max you should use in a Norc M14.....The Lake City ammo is 173gr.....I know it will probably be hard on the internals but will it be unsafe to shoot??....I bought 220 rounds....and I will not "rapid fire" them....The rifle wont blow up on me ...will it??