Reticle Perpendicularity by Darrell Holland

I use the level level level kit to insure my reticle is perpendicular to the bore of my rifle and have a level mounted on my scope once it's leveled. When I zero my rifle I make sure I shoot east or west to take out any type of corrialis effect and it maybe minuscule at close ranges but Believe it or not it makes a difference when shooting at extremely long ranges. Spin drift is another element to account for. I can shoot upto 1 mile here on our farm but rarely shoot that far. I usually shoot out to 1500 yards.
 
Wow!! Thank you, Mr Holland! Excellent articles which I will need to save and re-read. I am still in need of a system for leveling. I use a large wrench on a rope hanging on a dogwood tree out back and a couple of carpenters levels from my dad. My .308 does have a level built into the rail, which has helped me a lot.
I seriously have used this for 25 years and realize it's primitive without sarcasm.
 
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