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Old Yesterday, 09:52 AM   #26
GE-Minigun
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Join Date: September 26, 2008
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Never used one and probably never will…that’s a lot of money. My father had a Oehler 35P that never didn’t catch a bullet, granted they are very close to the price of the Lab, but can be found in the $300 range and under. If I were in the market, it would be the 35P, but I only shoot pistols and shotgun and add in the fact I’m not in any type of competition to where I’d need one…my $.02
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Old Yesterday, 10:13 AM   #27
hounddawg
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Quote:
It does not hang off the muzzle which can potentially change your harmonics.
Oh the MS definitely changes barrel harmonics. Thing is I quit using any chrono for my load development so it does not matter. Once my load is developed, I put the MS on there and fire two, maybe three shots into the be. That gives me my FPS for scope dope. That is all I need

I can have pics targets that have loads that shoot in the two and three digits as far as ES/SD but put 9 out of ten shots in a 4 1/2 inch circle at 850 yards and ten of ten in a 1.5 inch circle at 300. Looking at those started me down this path

The thing that cinched it was when I was playing with barrel tuning on a .22 LR. Rimfire ammo has some sucky numbers as far as ES and SD. Yet play with the barrel harmonics a bit and you can tighten the groups right up using bulk el cheapo ammo like Thunderbolt
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Old Yesterday, 11:25 AM   #28
stagpanther
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Quote:
you can tighten the groups right up using bulk el cheapo ammo like Thunderbolt
Well, you can lead a horse to water...but you can't make him drink. Seriously, how would you compare tightening up of the rimfire ammo "before and after" due to a tuner--I'm genuinely interested.
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Old Yesterday, 01:41 PM   #29
hounddawg
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During the 300 yard test of that .260 Rem ammo with the crap ES/SD numbers I noticed that the FPS did not matter on whether the shot hit high or low in the group. At first I attributed that to point of aim. When playing with the rimfire barrel tuner I was able to get low quality bulk with extreme ES/SD numbers to shoot as well as $20 a box ammo with lower ES/SD numbers. That is when I came up with my theory that velocity differences can be "ironed out" by the barrel harmonics on a properly tuned load.

Just a theory mind you but the fact remains that I have put 9 rounds into a 4 inch vertical at 850 yards then when that ammo was shot across a chrono the ES/SD was 168/56. I will know more in a couple of weeks, I have a bit more testing to do. I will be comparing some ProChrono Numbers to Shotmarker numbers and points of impacts from 300 - 850 yards
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