Plumb (to earth) reticle, slightly canted rifle... problems?

[ManUtdManiac]

Hey all,

Not able to send rounds downrange to get the data/dope and not enough grey matter to do the numbers myself so....

What would be my off target compensation for a rifle that's canted no more than 5-degrees but with the reticle/optic set plumb against a hanging plumbline? This will be a Tangent Theta 525/56 on a Big Horn Origin action over a medium palma barrel (In a sentinel stock if that would make any difference...).

I find having the rifle canted makes for a greatly easier cheekweld and sight picture and wondering how much my POA and POI will deviate as I go longer out - or if even this is advisable...

 

[2014landerson]

Sounds like the stock needs to be adjusted to fit you better the proper way.

 

[_Windrider_]

Should be gtg.

 

[Jack Master]

That's the way your rifle should be setup. You wont see a noticable error down range.

Check this thread out. This will have your calculated errors.
https://www.snipershide.com/shootinscope-mounting-plum-level-square-and-offset

 

[smoothy8500]

Yeah, Lowlight has a video where he purposely tested a plumb reticle on a severely canted rifle, and the effect at long-distance was negligible.

 

[ManUtdManiac]

this is sweet! Thanks gents!

 

[ManUtdManiac]

Sounds like the stock needs to be adjusted to fit you better the proper way.

This is also true, the pad on the rifle has a very pointed 'cup' that digs in... sniffle...

 

[WB300]

Thank you @Jack Master for this. I try to help new shooter understand this. The math will help me help them. I've recently discovered that a slight counter clockwise cant (11:30 position) is more comfortable/consistent for me.

@lowlight had a thread as smoothy above said. He had it posted on the SH home page before merging domains and now i cant find it. The visual results on target made the math more clear to me.

Does anyone have a link or can point me to Lowlight's article?

 

[smoothy8500]

I've recently discovered that a slight counter clockwise cant (11:30 position) is more comfortable/consistent for me.

I have the same position on my buttplate. Using a fully adjustable buttplate (height and cant) fits the butt to your shoulder and basically eliminates the rifle's cant. It's use is pretty common in NRA F-class and Palma where the prone position is constant. I guess with practical/PRS shooting where there is no constant position and continuous movement, a standard buttpad is appropriate.