Cheek Weld seems to be Very Important in Longer Distance Shooting

[gunDriller]

http://gold-silver.us/forum/attachment.php?attachmentid=8071&stc=1&d=1454779530

2 inches left, 2 inches right, 2 inches left, 2 inches right

2 inches left, 2 inches right, 2 inches left


Those are my 7 groupings from yesterday's shooting session.

My stance (sitting in a chair, basically the classic shooter's position, using front and rear shooting rests) is the same for each shot.

Using the $159 Primary Arms scope. The one with the very fine crosshairs.


I believe the alternating left-right positions of the groups is related to my shooting batches of 4. 4 works because it is easy to get a center, just draw 2 lines and where they cross is the center/centroid of the holes in the target.



I think not getting up and sitting back down every 4 shots affects the shooting a lot.

If I shot 10 or 20 of the same bullet, the groups would be different and might 'settle down'

[Jewboo]

http://image.slidesharecdn.com/ankylosingspondylitisrelease-151110020933-lva1-app6892/95/ankylosing-spondylitis-self-study-materials-for-medical-students-46-638.jpg?cb=1447176573

If your rib cage is firmly against the table maybe inhaling-exhaling slightly moves your aim right-left?

:(?? holding your breath Gundriller?

[Shami-Amourae]

I like to move my aim from bottom to top slowly, and pull the trigger on the mark. Helps keep me steady.

[gunDriller]

http://bullethose.com/wp-content/uploads/2011/09/DSC_0632-Large1.jpg

This guy has a chubby cheek. Maybe that helps.


http://www.hausofguns.com/2011/11/06/what-is-cheek-weld/

http://www.luckygunner.com/lounge/make-improvised-rifle-cheek-rest/

http://www.sniperforums.com/forum/sop/26259-how-get-proper-cheek-weld.html


Optically, you are siting through a number of parts of the system

The target

The bullet path

The scope (reticle and at least 2 lenses, a subsystem unto itself

Your cornea (acts as a lens)

Your retina (point of impact)

Your brain

Your cheek - determines when your brain tells your finger that you are aligned, from your point of view.


So at least half that optical system is human in nature, yet it depends on locating the angle of the barrel to 1/60 x 1/60 (and maybe, x 1/60) on 2 axes. The third axis being the distance to the shot.


I could imagine some ambitious optical engineering or rifle enthusiast building a mechanical analog of the human part and building the entire system ... for an art exhibit at Burning Man.

I don't like Burning Man, it's too dry. They need a Swimming Man or Drowning Man festival.