TUNER DESIGN QUESTION

[borderghost]

Sure this has been kicked around here before , had some loaded 6ppc ammo from last year to use up . went out today and shot it off , ( cold ) what I did was put a couple of O rings on just behind the muzzle, put about 1.5 oz piece of brass under the o rings and fired some rounds at different spots on the barrel. was interesting to see how this little of weight changed my point of impact. I do not shoot a tuner , ( and was bored ) I understand moving the tuner ( weight forward or back ) changes the harmonics of the barrel . some tuners add a lot of weight, my question is , has anyone tried a tuner design that is not perfectly round , has a unbalanced design , like a washer drilled off center . and that weighs much less, not sure if this was changing point of impact only , with no accuracy, just putting it out there.

 

[LHSmith]

It takes a VERY small amount of weight shift to change the harmonics to maintain tune throughout the range of conditions a shooter will normally experience-even with the simplist design (such as a Beggs tuner). What is essential is the device be easily adjusted, repeatable, and will not move under recoil. It takes a certain amount of mass to make them user friendly.

 

[DOGCAPPER]

Back in the 60s Phil Quaglino and friends used a metal sleeve bored 0.050 off center and tapped a set screw in the side. The popular method of adjusting was to rotate the sleeve without linear movement. At that time we were using tuners on 22 rimfire. sleeve was 1"+_ diameter and 2 to 3 inches long. The major setting was heavy side at 5 oclock view from rear .

 

[BenPerfected]

It takes a VERY small amount of weight shift to change the harmonics to maintain tune throughout the range of conditions a shooter will normally experience-even with the simplist design (such as a Beggs tuner). What is essential is the device be easily adjusted, repeatable, and will not move under recoil. It takes a certain amount of mass to make them user friendly.

All the tuners will work, the majority are in the 7 oz range. IMO, the smoothest and easiest to adjust and secure is the Mike Ezell Tuner.

 

[JimPag]

Sure this has been kicked around here before , had some loaded 6ppc ammo from last year to use up . went out today and shot it off , ( cold ) what I did was put a couple of O rings on just behind the muzzle, put about 1.5 oz piece of brass under the o rings and fired some rounds at different spots on the barrel. was interesting to see how this little of weight changed my point of impact. I do not shoot a tuner , ( and was bored ) I understand moving the tuner ( weight forward or back ) changes the harmonics of the barrel . some tuners add a lot of weight, my question is , has anyone tried a tuner design that is not perfectly round , has a unbalanced design , like a washer drilled off center . and that weighs much less, not sure if this was changing point of impact only , with no accuracy, just putting it out there.

Rick. I've mentioned this before to you. If u have any questions at all about tuners get ahold of Mike. Most of the tuners that I have are in the 4oz range, (Goodlings, Beggs, and Bordens), where as Mike's tuners are just about at 7. The 1st one that I bought off him weighed 7.6oz. The next 2 were 7.1, the last 2 were 7.0 even. Larry Feusse who chambers all my 30 Gorilla barrels bought one from Mike and after a while he had it apart, taking some of the tungsten disulfide powder out of some of the 9 chambers that they are contained in and was doing all sorts of experiments on how it shot. He told me he got it down to about 5 oz. People don't call Larry the mad scientist for nothing. He is always taking things apart and testing, trying this and that. As far as ease of adjustment, the only tuner that is a pain to adjust is the Beggs. You have to use 2 small rods in order to loosen up the 2 discs then turn it and lock them together again. It a pain. There is no difference in ease of adjustment of the other 3 tuners. They are all the same.

 

[borderghost]

Rick. I've mentioned this before to you. If u have any questions at all about tuners get ahold of Mike. Most of the tuners that I have are in the 4oz range, (Goodlings, Beggs, and Bordens), where as Mike's tuners are just about at 7. The 1st one that I bought off him weighed 7.6oz. The next 2 were 7.1, the last 2 were 7.0 even. Larry Feusse who chambers all my 30 Gorilla barrels bought one from Mike and after a while he had it apart, taking some of the tungsten disulfide powder out of some of the 9 chambers that they are contained in and was doing all sorts of experiments on how it shot. He told me he got it down to about 5 oz. People don't call Larry the mad scientist for nothing. He is always taking things apart and testing, trying this and that. As far as ease of adjustment, the only tuner that is a pain to adjust is the Beggs. You have to use 2 small rods in order to loosen up the 2 discs then turn it and lock them together again. It a pain. There is no difference in ease of adjustment of the other 3 tuners. They are all the same.

Thanks Jim , was a unable to sleep night last night , so came up with this brain cramp idea @ 01:00

 

[BoydAllen]

Some years ago, Dwight Scott built a few tuners that clamped to the muzzle and were adjusted by moving a threaded rod that was held below the barrel. Actually, you could clamp it so that the rod was clocked anywhere you wanted it. I have a couple of copies that a friend made from my reverse engineering of a photo from Precision Shooting magazine. I also have a couple of other designs that thread onto the barrel and are symmetrical to it. At the time that I played with all of them, my level of sophistication as to how to adjust them was pretty low, so I would not be able to give you an up to date evaluation of their potential, except to say that the ones that thread onto the barrel have done well for others.