Benefit of single shot bolt action

[Hammer]

Given the same barrel, trigger, stock, etc, how much accuracy benefit is there in the single-shot Savage bolt action versus the repeater Savage action ?

Not the new LRPV action, but the conventional Savage single-shot action.

Will group sizes drop by 10% ?

20% ?

Not at all ?


Hammer

 

[rhino]

You have a stiff action with a single shot and more bedding area.

Wil it shoot any better than a repeater, maybe, maybe not. It should cycle smoother, more reliable feeding especially with steep shouldered AI and .284 cases. However you can get a single shot adapter as well which generally solves that problem.

I like single shot actions since I shoot f-class. Also think about your stock having a well or hole in your stock might induce more flex.

If you doing BR or F-class...I suggest a single shot action.

RHINOUT!

 

[BoydAllen]

Years ago when this latest crop of single shots and laminated stocks came out, a Precision Shooting writer did a lot of testing and could not come up with an on paper advantage for the single shot. This corresponds to what Savage has found in their testing. A friend who has a couple of single shots has now come to the conclusion that for field work,varminting) he wishes that his were repeaters. I have a single shot that I like and all three bolt heads. If I am in the field helping ranchers with their ground squirrel problems, I too would prefer a magazine, but it's no that big of a deal. I keep extra rounds between my fingers and still have a lot of fun with my Swift.

 

[wolf]

i use a cooper single shot for deer fox and crow and have not yet found the single shot to be a disadvantage will get quicker at loading with more practice,

 

[jdavis62]

l think Rhino is spot on when he say's with out the well in
the stock you may get some helpfull stiffness.l know l like
to test my Remington 700'S in a stiff 40x stock with no well
cut in the stock..

Jon D.

 

[BoydAllen]

I agree about the stiffness, quality of bedding, and resultant accuracy improvement issues when comparing Rem. sporter with single shot 40x stocks. I have both and have seen the improvement from changing stocks. One more thing though, the Savage single shots with the laminated stocks are larger in cross section through the action area and have the same stocks, with blind magazine cuts as the repeaters, and I think that they are stiff enough, because of the thickness of the wood on either side of the magazine cut.

 

[Rustystud]

Single Shot vs Repeater

The single shot really makes a difference with heavy barrels over 26 inches. I don't care what anybody says, all of the round actions flex. I can see this flex with a action set up in a truing jig in the lathe, where you can take accurate measurments. Factory single shots tend to have more TIR due to there being more metal heating and cooling during the heat treating process. The better custom single shot actions use pre heat treated metal in their actions or true them after heat treating. The factories don't do this. Because the Savage action has what is known as the floating bolt head it tends to correct its alignment problems. There is a difference in being strong and being rigid. Most of the round actions have between .700-.900 of threaded barrel tendon screwed into the receiver. Then they have a .189-.375 recoil lug. that is independent of the action. Most square bottomed actions have .700-1.055 inches of threaded tendon into the receiver. That in conjunction to a thicker receiver bottom removes some of the flex. Solid square bottomed, actions are inherently stiffer than round bottom receivers. The round receivers with intergal scope bases on the top are the exception. They too are stiffer than just round receivers.
Rustystud

 

[Hammer]

Rustystud,

Thank you for your reply.

Know it would vary from action-to-action, and know there are lots of other variables in play, but...

If we took ten Savage single-shot actions and ten Savage repeaters, had them properly bedded, then took twenty barrels and fired a twenty-shot group at 200 yards with each, then rotated the barrels amongst the actions until every barrel had been on every action...

How much smaller would the single-shot grand average group size be than the repeater grand average ?

Three decimal places of precision will be sufficient.


Hammer

 

[oldjad01]

I would think that the potential benefit of the single shot action is so small that unless you are capable of shooting .0's you will probably never notice the difference and then the other factors,bbl,chamber,bullets,loading technique, table manners, etc) will mask it so that you may never ever be able to quantify it.
Since I am not in that group, I just buy repeaters and am happy as a clam with 1/4-3/8" and those 1/8" or under anomalys that we get when the planets are properly alligned and you have shot the correct number of hundreds of groups required.
Let's see, first you build two rifles exactly alike except that one is on a single shot and one on a repeater, Then shoot them exacly alike, side by side eliminating all variable beside the actions. Do it another 100 times or so to get a good statistical base and you have..........
JimDee

 

[Rustystud]

Hammer:

Look at the John708 post on the 6BRX thread. This rifle is a standard left handed model 10 that I have trued the action and added a .245 precision ground recoil lug. The bolt has been lapped and the action /bolt trued and timed. It was formerly a cross the course gun as a .260 Remington. Now being shot in the Any/Any Class as a 6mmBRX. It has a 31.750" Broughton 1:8, 5C barrel. The groups in the thread are 10 shot groups and were fire formeing brass. The groups all are under .417. If any of them had been shot as 5 shot groups they would have been in the .2s and maybe teens. This action has pillars and is glassed in at the lug.

I have shooters shooting model 12s with solid bottoms and they are shooting in the teens as are the new LPRB single shots.

How is your bossom budy Jim doing? I looked at the VHA results and did not see his name on the score sheet, I did see Fred's name on two matches.
I wish them well.
Rustystud