The Leupold 2.5x20 is about the smallest, lightest 1" scope out there, very very tough. I have a couple on my 45-70 and 444 for steep timber. A 1-4 or 1.5-5 would be my next picks, all 1" scopes, short, light and plenty for 357 ranges (under 250 yards on deer-size game - yeah that's long for a 357). There are some used 2.5x20's around, most of the fixed power 2.5's hold up to 357 recoil. I've had good luck with Simmons and have a alloy Weaver 2.5 that works well. I do have a Burris Fullfield 4.5-14 that I use for accuracy testing during load development, but then the light scope goes on if I going to carry or hunt with the rifle.