6 PPC BARREL TWIST ?

[liljoe]

I wonder if this is the same guy that beat everyone's ass with an old worn out unlimited barrel a couple years ago? I know of this man. A guy from Colorado told me about him.

Joe

 

[mharp]

Joe, did he look a lot like Bigfoot but with more body hair? Maybe had a sheep tied up next to his loading trailer?

 

[liljoe]

I heard sheep but they were ashamed to come outside of the trailer.

Joe

 

[D Coots]

Mark...Joe

FYI there was a sheep tied to the trailer. It belonged to that LRB from Colorado. I was watching it while he was at the line. No sheep in Iowa, but you know Colorado has plenty.

Happy New Year

Later
Dave

 

[Shooter13]

Gyroscopic stability has little to do with weight - it's the length that matters! The mass, for any weight range suitable for a particular jacket/bullet length, is simply along for the ride. For a 6mm bullet, measuring 0.845" long (typical for a 68 gr FB) the twist rate should not be less than 1:13" - the contemporary 13.5" twist fad is, "half a step in the right direction" - 1:13" is the number which produces Sg1.4Sg.

IT works better than the traditional 1:14", because it IS better . . . and 1:13" (sg1.4) is better yet! Add a BT, and go straight to 1:12" and don't look back . . . or, go old school and shoot FB bullets made on the 0.790" long jacket in combination with 1:14"twist, which produces Sg1.4.

DO this, and stand the hummer:bummer ratio on it's head, as we did with the correct
thirty caliber model, where, since 1997, we have been shooting bullets/barrell twist-rate combinations delivering Sg1.4 - Sg1.9 and from the same barrel makers, precious few bummer, or, ho-hummer barrels.
With correct twist rate, one does not have to purchase barrel after barrel looking for that, "good one" - they are all good!
RG

Some things just amaze me, really. When @RGRobinett post something I listen and yet many with much less experience will try to contradict him, amazing.

 

[brcman]

Is it possibble that this is the same guy in his younger years that shot the .044 @ 200 yards?

 

[D Coots]

Wayne

Mug shot at booking?

 

[brcman]

school picture?

 

[rayporter]

Dave
dont let em paint you into a corner.

wish i had been there to shake you hand!
ray

 

[lukehalee]

I don’t think anyone disagreed w Randy, I think everybody was just admitting to being lemmings and having had luck with slower twist. A lot of people talk about trying faster twist, don’t know many that have.

 

[D Coots]

I don't doubt Randy either. He is well versed on ballistics and knows the Real World too. Also makes good bullets. I first met him at the old Mason City Range in 2001 I believe it was.

A friend tried a couple of 12twist barrels and heavy bullets the last couple of years. Didn't notice any domination with that combo.

Now if I didn't want to be a lemming and wanted to think outside the box, all I would have to do is come up with a cartridge better than the one that has dominated the short range game for 50 years. I'm sure the lemmings have not done any experimenting to come up with anything better than the 6PPC. Most people that are shooting matches realize that it takes a better score to win than it did even 5 years ago though. Records are being broken every year by the 6PPC. Probably something as simple as a 13 twist they would never think of. Did they even make 13 twist until lately?

If I didn't want to join my lemming friends I would be designing reamers this winter and come up with a completely new cartridge to dethrone the PPC come spring. I'd show em....Cutting edge comes to mind. A person could dominate SR group shooting with the right cartridge. How about the latest one, the Grinch, how's that domination going? I applaud folks out there on experimenting and trying new things. Good for them. I'm not one of them. I'd rather blow money racing in my spare time instead of beating my head against the wall trying to outshoot the PPC.

I've done some reading about ballistics, charts, graphs, theories, ect. There has been a lot of ink spent on these kinds of things. But, as far as I am concerned the only ink that really counts to me IS THE INK ON MY TARGET PUT THERE BY THE PERSON DOING THE SCORING.

Later
Dave

 

[rogina]

Here's THE deal, as Mark states, and observed, we know that marginal stability, "works", and may work very well in certain conditions (air density, as he observed in the colder environment can be a deal wrecker) . . . if one has that "good/great" barrel - even most of the time.

As most do, one can purchase multiple marginal twist rate barrels looking and hoping for that "hummer", which must test/defy the laws of physics! Or, from his favored barrel maker, purchase a barrel with a twist which produces Sg1.4+, and enjoy, "one of the best barrels he's ever owned."

Of course, in the PPC world, employing a "faster" twist amounts to heresy, or, getting out of line and not going over the cliff . . . for the individual who can afford only a barrel, or, two per seasertical in the 3on, and insists on staying in line, the hummer quest can be epic - possibly one hummer every ten to twelve years - a LOT of dinaro, head-scratching, and lost time!

Or, the average bloke, can purchase a properly twisted barrel and, unless he's been fortunate enough to score a hummer along the way, very likely have the best 6PPC barrel he's ever owned . . . and almost certainly, the least finicky 6PPC barrel he's owned. Oh, there is NO precision penalty/loss via a soundly stabilized BR quality bullet. Yes, some barrels will shooot better than others: however, ho-hummers and bummers will be a thing of the past . . . amazingly, the lemmings just keep going unquestioningly over the cliff. The correct question(s): Who do YOU know who has tried it; Do YOU know someone who knows someone who has tried it? RG

Randy, Rob Seelye and I shot 13 twist barrels in our 6ppc's and 30 cal Hunter guns. They shot great but we noticed more vertical when we had to shoot in a 3 or 9 o'clock wind. I think we have good luck with the 13.5 twist in this part of the Country because of the elevation, 3200 feet. We shoot 17 twist with our 30 br's and 119 gr bullets. I agree with you 100% on these faster twist rates.

 

[D Coots]

Randy, Rob Seelye and I shot 13 twist barrels in our 6ppc's and 30 cal Hunter guns. They shot great but we noticed more vertical when we had to shoot in a 3 or 9 o'clock wind. I think we have good luck with the 13.5 twist in this part of the Country because of the elevation, 3200 feet. We shoot 17 twist with our 30 br's and 119 gr bullets. I agree with you 100% on these faster twist rates.

rogina

Not arguing with your results, but if you had more vertical when shooting 3 or 9 o'clock wind with the 13tw, how can you agree 100% with Randy?

Your findings on the 13.5tw working well at 3200 feet elevation is interesting. Do you suppose the top shooters are using different twist rates when shooting at different elevations?

Later
Dave

 

[rogina]

rogina

Not arguing with your results, but if you had more vertical when shooting 3 or 9 o'clock wind with the 13tw, how can you agree 100% with Randy?

Your findings on the 13.5tw working well at 3200 feet elevation is interesting. Do you suppose the top shooters are using different twist rates when shooting at different elevations?

Later
Dave

Dave, the verticle was still less than horizontal when shooting in the 3 and 9o'clock winds. We liked the faster twists so that is why I am in agreement with Randy. I built a 12 twist 22br in 1985 for dogs. At 5 to 600 yards rhe guys with the 14 twist 22brs could not keep up with me. I was shooting 50 gr ballistic tips.

 

[D Coots]

That 22 BR is a great PD round. It will do anything a 22/250 will do, only better, and not heat up so fast....

 

[Shooter13]

Everybody i know shooting a ppc uses a 13.5 or 14.

You need to get out more! LOL

 

[Tim Singleton]

Get a 13.5 or a 14
Keep some flat base .825s or .790bt on hand to shoot in cold
You'll be fine

 

[Shooter13]

The guy that shot the new range record at 100 yards in St Louis this year, a .044, told me he was shooting a 13.8 to 13.7 and a 66Gr BT.....Looks to me like if he would have done a little research he could have shot a decent group..............

You know the next BIG thing will be getting the bullet to just go 99.999 yards and just the nose of the bullet cuts the paper, 5 in the same hole 1/4 the size of the bullet. Now that's small LOL