Cz457/17hmr w/hawke scope - Hawke Sport Optics Vantage 4-16x50mm AO Rifle Scope 1in Tube Second Focal Plane

Recently purchased a Hawke 17HMR 4-16 X50AO riflescope for my CZ457 bolt action 17HMR, heavy varmint barrel(20.5") in wood stock. I have a Bscar 11mm/25MOA rail mounted to the factory dovetail, and using Leopold "Rifleman" 1" rings(#55870), "High"(about a 1/2" from top of rail to bottom of saddle), with the 50mm objective I have about 1/8-3/16" of clearance under the front, that's without a sunshade(not included). Went to my range, and zeroed in with regular ammo. 25 degrees and slightly overcast, but good sight picture, and I can see the BDC marks clearly. Started at 28yds., then 50yds., then 100yds. to achieve the required zero(the crosshair starts at "100yds.", then proceeds downward 150yds., a dot for 175yds., 200yds., etc.). There is a small dot on the vertical stadia between each yardage down the ladder. Shoot zero with Hornady 17gr. V-Max @2,550fps, which is what the Hawke scope date requires for the BDC to be accurate. After zeroing, I set up a 4"metal gong at 175yds., and with the Hornady 17gr.V-Max, using the "dot" between the 150yd. & 200yd. notes, proceeded to hit on the first shoot, and hit 8 out of 10. It was a little cold and about 4-6" of snow on the ground, so we quit while I was satisfied. I was shooting on a bench with a chair, a bipod mounted on the front & a rear bag. Parallax on adjustable ocular was fairly stiff but very usable(keep in mind it was 25 degrees), and the magnification ring was OK, the covered windage & elevation dials were accurate, but in cold weather, kinda hard to dial, however, once they were set for 100yd zero, you would "cap" them, and leave them alone. When I went from 100yds to 175yds., when I finished, I never noticed that I hadn't readjusted the parallax to 175yds from 100yds., so I would say the glass is good. Speaking of the cold, I have a Wheeler 1" bubble level on the scope tube, and when I would shoot a round, the air bubble would kinda separate into mutiple bubbles, probably due to the cold? Anyhow, I enjoyed using this scope, and would recommend it.