Ballistic link for you to get a guideline. Need to input data such as Muzzle Velocity, Bullet - style & weight, BC- Ballistic Coeffecient,sight in range, sight height (scope - 1.5" is common unless using high rings or see thrus) Max range, Intervals of data (ie 50 yards to 300 will give you ballistics on 0(muzzle), 50, 100, 150, 200, 250 & 300) then calculate.

You can get the FPS from the manufacturer then subtract -150 FPS for MV due to the 22" barrel. BC should also be found on the manufacturer's website in the ballistics for the bullet.

Any way just a guideline but may help you.

http://www.handloads.com/calc/