Old Gunner

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Robertra

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Hi old Gunneri came accross a post of yours where you decribed a method for finding the node in a barrel useing wires do you have a drawing of the rig used was the rifle fixed some way or was it allowed to recoil
regards
Robbie
 
Robertra said:
Hi old Gunneri came accross a post of yours where you decribed a method for finding the node in a barrel useing wires do you have a drawing of the rig used was the rifle fixed some way or was it allowed to recoil
regards
Robbie
Click to expand...

I may have a set of drawings of the set up used, but finding them now would be pure luck, I haven't seen them in thirty years at least.

If I can find any information on how this was done I'll post it here later on.
It may take awhile.
 
old gunner

Old Gunner said:
I may have a set of drawings of the set up used, but finding them now would be pure luck, I haven't seen them in thirty years at least.

If I can find any information on how this was done I'll post it here later on.
It may take awhile.
Click to expand...

Cheers for that,off hand can you remember if the rig for the wires was conected to the rifel ,barrel or was is independant of the two

Regards
Robbie
 
has to make you wonder now if the users of old hunting rifles with the sling
attached to the barrel with a band noticed some control or loss thereof
by how tight they had their sling when they made shots? i thought you could
just hang a thin necklace on the barrel to find a node, kind of like a ship
settling in the trough between waves.
 
Hi tom can you explain hanging a necklace on the barrel would'nt it just swing from the recoil
 
i think if the barrels level with the necklace (and i mean a light one
or wires just hanging in a loop around it) shooting rounds it should
walk itself along the barrel where it settles at the node or as bill
says where it's stopped or calmest. at the node it's a wave before
and after it shouldn't go past there. i had read something about this from
an old shooter. i envisioned putting about 10 necklaces or very fine
chains along the barrel and shoot it and see where they bunched up at.
i wondered if ringing the barrel would cause the chains to move or if it
would make different vibrations in different spots to shoot it instead.
it's gonna be a long winter. probably the lighter the necklace or wire
the more it will migrate to the node. good luck.
 
will try it and let you know the results wont be for awhile weather is terible over here at the moment might get out next week

regards
Robbie
 
Well I haven't had time to go through my books, but while thinking on how the information was presented an image came to mind.
I don't exactly have a photographic memory but I sometimes remember photos I've seen many years ago fairly clearly.

The image is of a target rifle with the stock held in a padded vise arrangement.
The wires are very thin but stiff, perhaps piano wire, and bent in an inverted shallow V with the apex rounded. There was white tape at a few places on the barrel.

If I'm not mistaken the rifle had a movable screw ajustable bedding block that ran in a rail that extended through the fore end. Somewhat like the adjustable hand rest I've seen on some rifles but with a different purpose.
The bedding block could be slid forwards or back and upwards pressure varied using a delicate torque wrench.
This was a specific application of the principle, probably not directly applicable to every rifle.

One might acheive the same result by using a free floated barrel and a selection of shims of varying thicknesses that could be mounted in the barrel channel at points indicated by where the wires come to rest. Then test fired for effect on group size.
 
Cheer's bud Tom posted a similar idea looped wire over the barrel node to be where the wire's rest???
 
by using the wire, and the tuner can you adjust the tuner to move the node to the muzzle? is that the intended purpose?


thanks
pickles
 
i would think that's what you're trying for. may take adding or taking some
weight off the tuner too. which makes me wonder do you want the exit
point of the bullet to be exactly at the node or slightly in front or in back
of it. if you have the node say a inch back can you just counterbore too
it? or does that affect the performance of the bullet? derek told me of
muzzle loaders using thin brass shims like big washers on the barrel to
apparently find the node with. sounds like it would work.
 
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