Intrinsic accuracy; single shot vs repeater

[dennisinaz]

How much accuracy do you give up in going from a repeater to a single shot in the same action. For example, a Borden Rimrock short action repeater vs the same action in single shot? Anyone ever done this test?

 

[ShootDots]

How much accuracy do you give up in going from a repeater to a single shot in the same action. For example, a Borden Rimrock short action repeater vs the same action in single shot? Anyone ever done this test?

I am assuming you are asking this because of the "cut-out" for the magazine well? You're thinking that it may not be as "rigid" as a single shot without the cut out? If that is your line of thinking, I would not worry about any loss of accuracy. If that be the case then the "Dual-Port / Drop-Port" actions would suffer the same loss of accuracy and as far as I can tell, they do not.

 

[Lapua40X]

If theory holds true, a well fitted action will present a properly aligned cartridge to the chamber of the rifle. That's the end of its job. The rest of the work is done in the barrel. Recoil should effectively stop at a well fitted recoil lug so the stiffness of the action should have no direct affect on the accuracy of the rifle. That said, a poorly bedded action that is not held firmly in place will certainly allow the movement of the action (and the entire action/barrel assembly) during recoil. So the secret is not in whether the action is built for single or progressive ("repeater") loading but in how well either type of action is fitted to the rifle.

 

[dennisinaz]

I phrased it wrong, I meant from a SS to repeater. IF a SS was not more accurate than a repeater, all the short range BR shooters would be using repeaters to shoot faster(for those who do) and for the obvious weight reduction so they could stick it in barrels and optics.

I am wondering if anyone knows of any empirical evidence that one is more accurate than the other.

I have several buddies with Tikka rifles that are stupid accurate and they have that shrouded cutout port that makes them more rigid. I don't know if that is what contributes or not.

 

[Dusty Stevens]

BR shooters use single shots because repeaters are not legal and our rounds are too fragile to plow thru a magazine

 

[boltfluter]

Dennis,

I think you are right on the money with your thinking of the Tikka rifles with the minimized loading port. I have a T3 in .223 that is a tack driver.

Regards, Paul

www.boltfluting.com

 

[LHSmith]

I am convinced actions do stretch and minimizing ports ( number and size) requires less brass resizing and the ability of the rifle to handle higher pressures i.e. more powder to take you into an upper node which may yield the best accuracy in conditions presented for that barrel on a given day.

 

[hpshooter]

I am at a loss to understand what forces stretch an action aft of the locking lugs. I would agree that an action with real locking lugs would be subject to stretching.

 

[dkhunt14]

I believe it has to do with the hanging of the barrel and vibrations. If you hang a long heavy barrel on an action with big cutouts it won't be as rigid as one with smaller cutouts. Most custom actions are bridged across the top and others like a REM have a cutout and would be weaker. Matt

 

[JRS]

The nod goes to the rigid customs, however, quite a little bit of fake wood has been won by those using the trued Remington actions

 

[Joe Salt]

Amen to the Trued Remington 721 Action, I threw that in because I own 5 of them and yes they do shoot. And I also have 2 -10" Bat's and with the same Chambering. And accuracy wise there is no difference. I am now a believer that the chamber work makes all the difference, So choose your gunsmith wisely.

Joe Salt




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[dkhunt14]

Amen to the Trued Remington 721 Action, I threw that in because I own 5 of them and yes they do shoot. And I also have 2 -10" Bat's and with the same Chambering. And accuracy wise there is no difference. I am now a believer that the chamber work makes all the difference, So choose your gunsmith wisely.

Joe Salt




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Joe you can't count it when they are glued in a block. That takes the hanging of a barrel out of the picture. Matt

 

[jrm850]

My mindset has always been that one slightly important component of an accurate rifle, the scope, has one half of it's mount located on the rear of the action. The stiffer the action the better in my humble opinion.

 

[Joe Salt]

Matt you forget I have a L.G. with a block also with a Rem.721 hanging of it and it shoots very well.

Joe Salt

 

[expiper]

OP,,,the action smoothness of function is more important than whether or not it has a mag. cut or xtra port in it,,,and how good the fire control works,,,,the most important thing is the bbl,,,if it is good or not makes the most dif. in accuracy,IMHO>>>Roger

 

[M-61]

Here are two thoughts I had (which are based on nothing but imagination).
If the goal is to have a STRONG action why not a SHBF (shell holder bolt face) that would require no port any where on the action.
Or that design the euopeans (Blaser, Merkel, Heym) have in which the bolt locks into the barrel. The action is no more than a guide for the bolt.
Either of the above (I think) leaves the action out of the equation.
I think I am missing something here.

 

[JRS]

Here are two thoughts I had (which are based on nothing but imagination).
If the goal is to have a STRONG action why not a SHBF (shell holder bolt face) that would require no port any where on the action.
Or that design the euopeans (Blaser, Merkel, Heym) have in which the bolt locks into the barrel. The action is no more than a guide for the bolt.
Either of the above (I think) leaves the action out of the equation.
I think I am missing something here.

+1, my guardian angel in the sky Much like an arbor press, it's function, beyond supporting the barrel, is to push that component in a straight line.

 

[dkhunt14]

That is what a glued in barrel block on our heavy guns does. With a 1.450 diameter barrel glued into a barrel block about 9 inches long it takes the action out of having to hang a barrel on. The action free floats and has the purpose of firing and feeding the round. These guns are pretty accurate. Kind of like the rail guns in the PPC game. One of the best Dashers I ever saw was a Hall falling block. It had a heavier barrel because the action is light and no bolt to upset the gun. It made a really accurate 17 pound 1000 yard BR gun. Matt

 

[Alex Wheeler]

Why is it common perception that a stiffer action is better?

 

[Joe Salt]

They say a lot of thing are better when stiffer! But after finally finding the best Gunsmith in the Country I say the Chamber in a good barrel wins out.

Joe Salt