Back again.

Greg Langelius said:
Been away a long time, mostly hanging around at SH.

So, what's new, what have I missed?

Greg
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Depends how long you've been gone. There are Tuners now in nunbers showing up @ matches and some new stock designs have been shown. The 30 BR continues to amaze a few folks as well as the derivities of other cases which are close to the 30 BR.

There have been some major rules tightening @ IBS, which were needed and the numbers of Score Shooters continues to grow, vs Group shooters where the numbers are declining. 6oo Yd competition has progressed and is doing well as I guess F class is. Oh, and then there are the Groundhog Shoots which bring out big numbers of shooters.

Then out in the middle of the country there is a two gun deal that seems to have gotten some interest , even back East. I think, actually, there is quite a lot new in the past few years. Lots of 25 x scores have been shot over the past couple of years and a number of records have been broken. That's it.
 
I did some testing with a some homemade tuners. There was apparent initial success, some rather spectacular. Then, nothing would work, and there was no rhyme or reason to it. After about 5 hours with two guns and nearly 400 ronds, I decided to stop flogging my guns and give up.

My tuners were simplicity itself. A hardware hex nut with an inside thread about 1/8" larger than the muzzle diameter. A 2" length of bicycle inner tube, smaller than the muzzle, stretched over the muzzle end of the barrel and secured in place with silicone sealer. The nut threads are blunted with sandpaper (otherwise they would slice the tubing into a spiral strip), and then screwed onto the rubber sleeve, displacing the rubber surface to form temporary threads. If lube was needed, I used Armorall Gel.

The nut is adjusted longer and shorter on the barrel, and group sizes vary accordingly. Or at least they did. Then they didn't and I can't really understand why. I'm holding off on further testing until I can.

I shot 1000yd F Class for two years with my Savage-based, L-W barrelled .260 Rem custom, with some limited success, then we lost our venue (Bodines) because of safety issues.

This year, my buddy and I have been experimenting with what we call 'FV" events. Gun rules are straight F class, Open and T/R.

Targets are homemade, and the event is fired prone at 200yd. Strictly a club event. The target is printed on 8 1/2" x 11" white computer card stock. The paper has 1/2" border, and is posted in landscape orientation. The aiming shape is a white 1" 'V' ring, a 2" light gray '5' ring, a 4" white '4' ring, and a 6" white '3' ring. The rings are defined by black lines about 1/32" thick (9 pixels). Anything landing between the '3' ring and the 1/2" border is 2 points.

We use ceiling tiles as backers, held upright with a length of rebar driven into the ground front and back of the tile, which is arranged landscape style. Two targets are posted per tile, side by side, with a third directly above. The first two are scoring targets with ten rounds fired on each, totalling 20 rounds per stage, which is preceded by unlimited sighters on the solo target arrayed above. 30 minutes is alloted for stage, and this includes time for the sighters. AQmatch consists of two stages with a total of 40 rounds fired for a possible 200-40X score.

We run the matches on alternating Satudays and Sundays, two matches per month at our club in odessa NY. We get an OK turnout (our line takes 8 shooters prone,and we have on rare occasion needed to run a second relay). Sounds easy, but it isn't. Everybody's having a good time, most are pretty regular, and the number is slowly growing as the word of mouth slowly spreads.

Greg
 
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Greg,
Something changed. I doubt that it was the metal parts. It may be that the inner tube changed over time, possibly through a reaction with your lube. In any case, all the other tuners that I have read about or tried are metal to metal where they attach to the barrel.
 
Greg Langelius said:
I did some testing with a some homemade tuners. There was apparent initial success, some rather spectacular. Then, nothing would work, and there was no rhyme or reason to it. After about 5 hours with two guns and nearly 400 ronds, I decided to stop flogging my guns and give up.

My tuners were simplicity itself. A hardware hex nut with an inside thread about 1/8" larger than the muzzle diameter. A 2" length of bicycle inner tube, smaller than the muzzle, stretched over the muzzle end of the barrel and secured in place with silicone sealer. The nut threads are blunted with sandpaper (otherwise they would slice the tubing into a spiral strip), and then screwed onto the rubber sleeve, displacing the rubber surface to form temporary threads. If lube was needed, I used Armorall Gel.

The nut is adjusted longer and shorter on the barrel, and group sizes vary accordingly. Or at least they did. Then they didn't and I can't really understand why. I'm holding off on further testing until I can.

Greg
Click to expand...

Greg,

As Francis suggests, go to the archives and read the progression of tuners. I think you might find some information as to WHY.
 
Wow, that was fast. OK, will do. I agree, something must be different. I also agree, the Armorall is doing something to the rubber, I think water would also work and work better. I have no means of metalworking, and really don't want to mess with that beautiful L-W barrel, so the rubber sleeve threads method will remain for now. The one I had on my Rem 700 VLS .223 went on and came off without leaving any marks, and that's what I was hoping for all along.

Greg
 
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Whoa! Just read Gene Beggs' writeup on tuners and temperature. Temperature. Totally unexpected. Ohyeah, the temperature changed alright.

Learned a ton in the first post I read, this reading stuff has something to it, I think I'll do some more...

Mucho thankso.

Greg
 
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