A Look at Sig Klein’s record military press: 229-1/4 lbs. at a bodyweight of 152 lbs. Keep in mind this was a true “press;” back straight, heels together, knees locked — not the “standing bench press” or “slump-press” style of later years. You won’t find many heavyweights these days who could duplicate such a weight in this style, so for a man of Sig’s size, this is a truly phenomenal feat.