Rifle Scopes How does bedding help?

[arthury]

Correct me if I am wrong, my understanding is that the full length AL bedding in the 700P and 5R and other higher end stocks sold by B&C, McMillan and HS Precision helps to stabilize the shot when it is discharged.

Question: since the barrel is free-floating and does not touch anything except at the receiver side, how can the bedding stabilize anything? If barrel touches the bedding during the discharge, wouldn't it cause a disruption to the harmonics of the barrel, which is bad?

 

[shoot4fun]

Re: How does bedding help?

wrong section. Might want a mod to move this one.

 

[felderthewelder]

Re: How does bedding help?

Well, bedding makes a better connection between the receiver and the stock. It will lower vibrations. The barrel should not tough the stock obviously and free floating takes care of that, but the receiver has to touch something so you bed it to make it a more stable foundation.

Now as far as the rifles you mentioned, I have a 5r, which did not come bedded. It came with a bedding block. Which basically gives you a better start on the actual bedding itself. But it is not the same as bedding.

Eric

 

[AXEMAN]

Re: How does bedding help?

yeah, your thought of bedding or the example you may have seen has led you to think of it incorrectly. go down a few sections in this thread forum and there is a gun smithing section. there is a post towards the top about how to. it has enough pictures to show you what a proper bedding job is and you will see that there is 100 contact and support of the receiver and recoil lug. the barrel will free float. i have seen quite a few old guns at shows that had the barrel bedded too. weird

but even my HS stock with an aluminum block milled out isnt going to have 100% contact to the receiver so i skim bedded my rifle

you could let this thread die too and ask your questions over in the thread i mentioned, its easier to quote stuff and show you examples

 

[Tripwire]

Re: How does bedding help?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: shoot4fun</div><div class="ubbcode-body">wrong section. Might want a mod to move this one. </div></div>

Actually bedding relates to optics in two ways....

1.) A properly bedded action with no induced stress will also not impart any stress on the mounts, rings, and ultimately the scope.

2.) Many, myself included, bed the base to the reciever to also allow it a perfect fit, which when done properly will also prevent stress being conducted to the scope.

 

[gugubica]

Re: How does bedding help?

Bedding needs to be done for one reason. That is to remove any imperfections in the action and base. Actions are not perfectly flat, stocks with bedding blocks are not always perfectly flat. Bedding makes them fit together perfectly so unequql torque is not exerted on the components. This goes for both action to stock and base to action.

 

[HillbillyfromAL]

Re: How does bedding help?

This belongs in the Gunsmithing section.

 

[Niles Coyote]

Re: How does bedding help?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Art Y.</div><div class="ubbcode-body"> If barrel touches the bedding during the discharge, wouldn't it cause a disruption to the harmonics of the barrel, which is bad? </div></div>

It's not just the barrel that vibrates but the entire action. An improper trigger pull is a good example of this. Pull the trigger slightly to the side while applying pressure to the rear and watch the impact go wide on the target.

A bedded action ensures complete contact to the stock. Imperfections in the stock and action will leave some areas where the two can vibrate against each other causing inconstancies in groups. Bedding fills these areas, voids or raised areas ensuring complete contact. Key points are where the action screws attach the stock to the action. This is why some only bed the lug and action screw areas, while others bed the entire action in case there are high spots or points of contact between them. This will also correct any stress in the aluminum bedding block if the stock is so equipped. You can also bed the first section of barrel stopping before the tapper begins, usually the first 1-2 inches of barrel. As long as it is applied in a stress free manner there will be no ill effects and you will have a stronger platform when you are done.

 

[XxMerlinxX]

Re: How does bedding help?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Niles Coyote</div><div class="ubbcode-body">It's not just the barrel that vibrates but the entire action. An improper trigger pull is a good example of this. Pull the trigger slightly to the side while applying pressure to the rear and watch the impact go wide on the target.</div></div>
An improper trigger pull has nothing to do with vibrations, it has everything to do with which direction the force is traveling and exerted upon the rest of the rifle. If you pull the trigger with the tip of your finger, like the top picture in column A, then the shot will swing to the right since you're pushing the rear of the rifle to the left. If you put too much finger on the trigger or catch it at an angle like the bottom figure in column B, and pull it to the right, your shot will swing to the left. If all of your force is exerted completely to the rear, in a proper trigger pull, then the barrel will remain on target.

 

[Niles Coyote]

Re: How does bedding help?

Merlin, I can't see your columns, just a red x, so we may be talking about the same thing with a different take on it.

My example was taken from a SH online training video lesson where Jacob explains proper trigger pull. He explains better than I can, that the barrel and action all resonate together. Slowing the harmonics on one side by a trigger pulled ever so slightly askew will have a dampening effect. Think of a tuning fork. If it’s held more on one side than the other, the side that is held more will vibrate slight slower because of dampening. Hence the 90 degree finger angle, pulled straight back that rifles only preaches.