I am about ready to purchase a CZ 455 combo with .22LR and .17HMR barrels. Have only had one .22LR bolt rifle before and have been craving something more accurate in that caliber. As a bonus I have been very curious about the .17HMR and its accuracy and range. This purchase would at least seem to satisfy both of those "needs", Tried to read everything I could find on scopes and mounts for these light calibers, but I'm still confused. The 455 combo is running about $500, so I'd prefer to keep the whole riflle, scope, rings, accessory price under $1,000. Any experience with this rifle or the .17HMR? Recommendations for scope/mount? Variable power? Useable range? Reticle type? Can I use a single scope with both barrels (realize it would require re-zeroing)? Thanks in advance for your knowledge! ....Oh and my eyes are pretty decent (no eyewear except for reading), but at 52 not as sharp as they were 20 years ago. Seems like I appreciate more magnication than my 23 year old son.