Rifle Scopes New to the game and making my first build.

[Farmerjoe]

Hello to you all! Have done a bit of research and making my first build. I have placed my deposit on a Ruger precision rifle gen 3 in 308 and about to pull the trigger on an Primary arms PLx 6-30×56 optic set but unsure about the mount. Tossing between the American defence recon QD mount or the straight low QD mount? Was thinking straight low to keep it close to the barrel but do not want ejection conflicts. Any thoughts would be help. I would also appreciate on feedback in general on the build. I have posted this in the bolt action thread also and was suggested to place it in here.

 

[Kevins750]

I have a the same scope on a savage 338lm in a chassis with an ADM tall mount.

 

[Greg Langelius *]

I think that as long as one's cheek rest is adequately adjustable, it may well be better to have a higher scope optical axis. It raises the optical path up above some of the barrel mirage, and also allows the bore axis to be lower as the rifle is addressed, thus reducing muzzle flip.

Most muzzle flip occurs because the traditional stock design places the bore axis higher, so it passed above the shoulder. If you've spent a day shooting a shotgun with a traditional dropped comb stock, you have the cheek slap to show for it.

This is an attempt to get the iron sight axis up in front of the eye.

But iron sights are from another era, and scopes mount up higher. IMHO, the bore axis should pass directly through the contact point between stock and shoulder.

To compensate for muzzle flip, many resort to muzzle brakes. They reduce muzzle flip, but the additional noise and concussion can be detrimental to good accuracy.

Greg

 

[Farmerjoe]

I think that as long as one's cheek rest is adequately adjustable, it may well be better to have a higher scope optical axis. It raises the optical path up above some of the barrel mirage, and also allows the bore axis to be lower as the rifle is addressed, thus reducing muzzle flip.

Most muzzle flip occurs because the traditional stock design places the bore axis higher, so it passed above the shoulder. If you've spent a day shooting a shotgun with a traditional dropped comb stock, you have the cheek slap to show for it.

This is an attempt to get the iron sight axis up in front of the eye.

But iron sights are from another era, and scopes mount up higher. IMHO, the bore axis should pass directly through the contact point between stock and shoulder.

To compensate for muzzle flip, many resort to muzzle brakes. They reduce muzzle flip, but the additional noise and concussion can be detrimental to good accuracy.

Greg

Thank you for that detailed explanation. I have made an order for a1.44inch high mount from Nightforce. I hope its high enough. It was the tallest one peice they offer in a 34mm tube that would take the multi rail upper ring from what I saw.

X-Treme Duty - Ultralite - One-Piece Mag Mount - 34mm - A162 (For firearms with 20 MOA rails)