Back squat

Work to a heavy 1 Rep, then 3+ sets of 3 beginning at 70% and adding 10 – 20 pounds each set as you can. Finish with 2 sets of 5 @ 50% of the heavy 1 rep.
Back Squat (3 Reps @ 70% of above)
Back Squat (3 @ 10 – 20 # more)
Back Squat (3 @ 10 – 20 # more)
Back Squat (2 Sets of 5 @ 50% of Heavy 1 Rep)

270 x 1
190 x 3
200 x 3
215 x 3
140 x 5 x 2