Wish that instruments (that take measurements) were accurate and precise.But they generally aren't.Welcome to my world.
Quote from: Davo on April 01, 2017, 03:58:39 AMWish that instruments (that take measurements) were accurate and precise.But they generally aren't.Welcome to my world.Not ALL. I picked this little tool up a few years ago & it works like a champ. Aligns the scope to the barrel very easily. I've double checked it with the mirror, level method...dead on. http://www.brownells.com/gunsmith-tools-supplies/sight-scope-installation-tools/scope-reticle-levelers/vertical-reticle-instrument-prod6097.aspx
The notch on the bottom sits on the rifle barrel. The notch on top sits on the end of scope objective. Using the built in spirit level, this aligns the scope with barrel & makes sure the scope isn't offset from the barrel. Then point scope/rifle at a known vertical line, rotate scope gun and scope if needed to align reticle. Quick & easy.
Here's a good example got mine setup with the mirror both centered between bore and scope objective check. Went to proceed to level my cross hairs after the gun and scope were clamped down with a bubble level on a scope and level on the wall. Dead on at closer ranges but off to the left at longer. I always though the reticle looked too far to the CCW but trusted the wall level with the horizontal reticle. Reconfirmed my problem with the diagrams from Scotchmos thread and sure enough his diagram describes my problem exactly. So even though my bore and scope are aligned it doesn't matter if the cross hairs aren't perfectly level.
Crazy how that works huh Terry? Took my Veteran to the farm today as I wanted to get some live action with it and was missing starlings at 50-60 yds all going left by a good inch or so. Tested shooting at dirt clods at different ranges and found where it was shooting straight at longer ranges instead of left and now just shot 2 at 90yds+- dead on where I aimed. Crazy how alittle angle can cause such a huge difference