How does a lower affect accuracy?

[RowdyRawhide]

It has no effect at all, if you are a good enough shooter to notice a difference in accuracy, then you are good enough to put the gun in the same position every time before you pull the trigger.

Wiggling the action in a bolt gun and a sloppy upper/lower fit are comparing apples and bananas. The forearm (assuming it a free floating forearm) is attached to the upper (with the barrel) not attached the the butt stock separate from the barrel. When you address the AR and you provide your cheek weld and shoulder fit you "tighten" the wiggle, the only way you could do that to a bolt gun with a "loose action" would be to rest barrel instead of the forearm of the rifle.

The only thing that could be argued is the trigger, but that helps the shooter, and is separate from the inherent accuracy of the rifle IMO.

Get the cheapest forged lower you can find and use a quality barrel, bolt, and trigger group.

 

[Vapor]

Originally Posted By: RowdyRawhide Wiggling the action in a bolt gun and a sloppy upper/lower fit are comparing apples and bananas. The forearm (assuming it a free floating forearm) is attached to the upper (with the barrel) not attached the the butt stock separate from the barrel. When you address the AR and you provide your cheek weld and shoulder fit you "tighten" the wiggle, the only way you could do that to a bolt gun with a "loose action" would be to rest barrel instead of the forearm of the rifle.

So you're making this conclusion on the assumption that the off hand is providing sufficient tension to completely remove any movement of the upper due to recoil?

Ok.

Cheek weld and shoulder fit have nothing to do with the upper. All of this magic torque come from your off hand and you're going to have to be Chuck Norris to defeat 100% of recoil with a one handed grip on the fore end.
Even if you shoot prone from a bipod and load it properly, there is very little chance your support will consistently prevent the upper from moving with recoil.

 

[dseagren]

I would imagine the buffer/buffer spring combination in a lower could affect the bolt locking time of the rifle and therefore possibly accuracy. If you have the correct ones I don't really see it as being a factor

 

[hylander]

Originally Posted By: Widow maker 223My dpms is sloppy.

I must not be doing something right.

Thats just sad

you Ain't even close to the dot

 

[dmpowder]

You guys crack me up!

Lowers have no effect on accuracy! Plain and simple I promise you that if you take a upper and shoot the same ammo with the same shooter and use 30 different lowers and use just one trigger the groups will stay the same!!!!

But then again I guess we can start using a sloppy lower as a reason why are groups opened up.....

"Well it would have been a sub .5 if my lower wasn't so sloppy on my upper!"

 

[Widow maker 223]

You will have that with sloppy guns.

The top flyer was from my brother, i was teaching him the prone position. Then i showed him my skills. That was with a 100$ scope and 10$ rings.

 

[midwestpredator]

Originally Posted By: hylanderOriginally Posted By: Widow maker 223My dpms is sloppy.

I must not be doing something right.

Thats just sad

you Ain't even close to the dot

depends on the situation a guy is shooting. at 100yrds with my 22 250 I like being 1in high so at 200 Im dead on. with my .223 i think im 2in high at 100yrd and that puts me dead on at 200yrds.

or he was maybe just shooting for grouping and not actually trying hit a specific point on target.

or maybe its a load that is being tested out.

point is you dont know what they were trying to do. and theres nothing wrong with that group but one flyer and that could have been from any number os reasons

 

[Widow maker 223]

/\. Exactly. That load was slow with a 200yd zero, so it was about 2" high at 100yds. The flyer wasnt my shot. Anyhow i dont think the slop makes any difference. With proper shooting form you shouldnt be torqueing the lower side to side during the shot. In the prone i load the bi pod, rest the full weight of my head on the stock. Light grip, totally relax with zero muscular tension. The only tension i feel is in my trigger finger.