With tack and all, my horse carries somewhere in the neighborhood of 250 pounds. He's a short thing, a Haflinger/Morgan cross, but he's built like a brick ***thouse. I figure if it's too much for him, he will get me out of the saddle one way or another. So far, he hasn't deemed it worthy of expending his calories to bother with anything but packing me around. He's a happy boy before, during and after the rides; no staggering, no acting like he's about to lay down and die, none of that nonsense.
Your horse will let you know if it's too much. You will come out of that saddle one way or another. If he's a happy camper, don't sweat it and enjoy your time with him.
Right on. Yesterday I was watching and old western and the one male rider who has to tip the scale at about 180 had a second rider who weighed the scale at least 200 also on the horse was the older heavy weight leather saddle plus gear which probably added up total weight about 400 or better