dvdegeorge

[quote]ORIGINAL: Grendle

Actually it hasn't moved yet, when I set it I used automotive lock glue, so the scope isn't going to warble anywhere.

I've had mine for almost a year now, probably 200 rounds out of the gun so far and no warble.

Gee I always thought a warble was a fly!

RedAllison

Ever heard of the old principle about big game rifles called the "Rules of 3"?.

Basically it works like this: Take most any recognized "deer caliber" (243 thru 300s) and any generally accepted "appropriate weight bullet" and if it is running in the neighborhood of 3k fps @ the muzzle, if you sight it in 3" high @ 100yds the bullet typically wont rise above or fall below 3" from the chosen target/line of sight, basically all the way out too 300yds. That was an old "generality" that many gun writers of the 70s and later dismissed simply because they thought it in-accurate and to simple. But it works! Where not talking about 1/4" accuracy, we're talkin about whackin a deer in the breadbasket with the average deer rifle and average shooters abiliites.

Why not maximize your 06 class, 7/300mag class or larger mags with such a simple sight in procedure? No sense in not getting all your chosen caliber has to offer. For most beginners that listen and sight in their guns accordingly I tell them to, "Aim for the middle of the vitals" and if their equipment measures up too the "Rule of 3" they typically wont miss the vitals due to overstrike nor the bullet falling short.

All that bein said, however there is a trend today among hunters to believe ballistic tables are accurately depicting any and every rifle on the market. Variables like how far above your line of bore your line of sight is and other variables make it an absolute necessity to sight the gun in as described and then shoot it at each 50 or 100yds increment just to see what the gun is doing.
Good luck,
RA

clattin

I typically follow the "Rules of 3" with some modifications....I sight in my flat shooting calibers (which is everything but my 30-30) to shoot 2.5" high at 100 yards. This will make them dead-on at 275-300. The azimuth of the trajectory will be 3" at about 150 yards. That's minute-of-deer out to 350 without even really thinking about how high do I need to hold, etc. I'm not comfortable shooting beyond that distance so it works out perfectly.

I would sight-in my guns this way regardless of where I'm hunting. Even if you're hunting thick swamps, you never know when you might step out on to a logging road and have an opportunity that you need to take immediately without thinking about how high to hold.

clattin

HighDesertWolf

Ive always zeroed my 308 win at about 2 to 2.5 inches high at 100 yards with my gun zeroed this way I have shot deer as close as 15 yards to asfar as 300 yards with just holding my cross hair in the center of the deers vitals, I killed one deer further then 300 yards it was probably 375 to 400 yards I dont really care to shoot that far but it was the last day of season and the last few minutes of shooting hours I held maybe an inch or two above its back and hit it right through the lungs. with my sight in method it hasnt failed me yet so i will stick with it.

Scott Gags

Dont forget your line of sight through the scope is approx 1.5" above the bore. That means the bullet will travel for approx 40 yards below the line of sight of your scope if sighted in at 200. At any rate you buddy missed the deer because of an illness called "Buck Fever" not his zero point.
If you zero in at 200 yards with a 3000 FPS load the bullet will be approx 1.5 inches high at 100 yards. That is balanced against the 1.5 inches low that the bullet is when it leaves the barrel so I always use 200.