Thank you for your opinion before hand. For thise with experence with Redfield's 550 ranger finder, please tell your opinion, pros and cons. Will it range deer out to 500 yds in the field?
I was wondering how many other shooters sight their rifles to zero at 25 yrds?
My 7/08, 140gr NP @2800 fps has point blank range to (+/- 3") 279 yds, zero at 25 yds and again at 237 yds.
Here is my method. Set a target 25 yds, or paces away. (in front of a good back stop).
From a rest, cross hairs dead center target, fire one round. Return the rifle to point of aim, holding rifle still adjust cross hairs to center of bullet hole. Now I am spot on with a one shot sight-in. Sure saves on ammo.
For a rest I use empty beer cans. Crush them in the middle and stack them Linclon-log style. I put a shop rag down to protect the hood of my beater 72 ford p/u. Hint: The faster the beer is drained the more cans and better the rest.
Then I stagger out to 100 yds or so and set the target up. I use a pie tin. If I knock it over I'm good to go. One time I don't remember seting two targets 100 long steps away but when I looked through my rifle scope I saw both targets. With both cross hairs on both targets I knocked them both down with one shot. I owe this good shooting to the 13 emptied beer cans used for a solid rest. The 16oz seem to make a better rest than 12oz.
I can't be full of it, I drained the beer 
