I'm sitting here playing with the insides of my Fultons no1mk3 and wondering if the three internal springs are situated exactly on nodal points, or not ...
So I've been looking all over for a diagram of the harmonic vibration points of nodes/antinodes for the stock smle barrel but to no avail.
I have the James Sweets diagram of the H barrel nodes and measurements but there's no notation how close that is to the stock barrel.

I found this online;
"OK, back to harmonics ... if one hasn't tried this method to determine the barrel null point, give it a try because it does work

On the top flat of an octagonal barrel, sprinkle talcum powder the length of your barrel. Holding the rifle level, shoot it off hand. Then look at the talcum powder. It will be figured like this in waves:
>>>>>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<<
At the point where the 'waves' reverse that's the null point of the barrel for a given reload. Then shoot a few bench rest groups for verification"

It sounds a bit interesting, can one really do this with bits of wire as I read someplace? How, whats the method so I could try it?

Should the bullet be leaving on a node or antinode or middle?
Does one add bedding on the node or antinode, or something else entirely?

If the positive compensation were such a good thing on No4's then why wouldn't we all strive to create that effect on other rifles/enfields?

Thanks, this has long been a question and finally getting around to it.
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