Originally Posted by
dverna
"I wish we had an engineer type who knows about these matters and is able to talk to us redneck types in plain English without confusing us with math formulas and such...
There must be a reason for having so many settings, I'd like to know why?
Where are we most likely to encounter wider nodes . . . on the short barrel compared to the long barrel?
All I know, or I think I know is that it must be a function of all the frequency's generated by the shot being fired and how they happen to end at the muzzle, either being a node spot or not and all that being a numerical function compared to the frequency of vibration in any specific barrel length. Or something like that, I think I just described a complex mathmatical formula that dwarfs my comprehension?"
I am an engineer and hold a few patents...none on this subject but I use common sense a lot. And I have found many "redneck types" are plenty smart and have a lot of common sense.
Here are my opinions....
The only reason target rifles for .22 smallbore competition have long barrels is to increase precision...not accuracy. By that I mean the benefit of greater precision with a longer sighting radius is paramount when using iron sights and trumps any slight loss of accuracy due to nodes.
A short thick barrel will be less affected than a longer thinner barrel.
(A) A difference of .025" in barrel length will not be discernable. If there is a difference, it will require thousands of shots to measure the difference. I believe there will be greater affect by adding or increasing the mass of the tuner than the impact of adding a wee bit of barrel length.
(B) Sometimes good enough is good enough. I agree with Mr. Tobin's suggestion to test out your tuner. KISS
I would suggest playing with tuner weight if that is possible. I know there is a lead tape I have seen used on shotgun barrels but even a lead mass attached using "Goop" will work for testing. I have used Goop to attach ribs on shotguns (for testing) and it will not mar the finish and is easily removed.
(C) One last thought....go to Rimfire Central. I suspect there are guys there who have a lot of experience with tuners on .22 rifles.
Good luck!!!