6 BRA Group Reading

[Creed Bratton]

I'm guessing it is a 4-32 power, not 4x32.

Correct... 4 - 32x50

 

[Jet]

Correct... 4 - 32x50

Then disregard my last post. shoot at 300yds and you will have data you can use.

 

[tom]

I can't imagine the damage I could have done all these years had I used flags, and backed up 900 yards.


Tom

 

[Creed Bratton]

Is it a no turn neck? What size neck; what size neck bushing are you using?

274 neck…266 bushing

 

[Ccrider]

What is your finished cartridge neck diameter?

Tie some surveyor’s tape on a stick. Cheap wind flags.

No way I would move out to 300. If it ain’t shooting at 100, it will not get better at 300.

I do not know the accuracy capacity for Proof Research Stainless Barrels. My assumption is that they should shoot at least .25 moa.

I would test seating depth at this point if I were you, using the same charge windows.

 

[Ccrider]

I could not resist so here is a thread I found regarding Proof barrels. I read some other things. They reputedly seem to shoot as well as other cut rifle barrels.

Proof Stainless Steel Barrels (Not CF!)

I’m getting a quote on what should be a fairly affordable barreled action. My choices for in-stock barrel blanks are Shilen (match grade) and Proof, both stainless. I’m getting quotes for both barrels and have read the large amount of info on the Shilen barrels that is online, but there isn’t...

www.snipershide.com

 

[shoot4fun]

I can't imagine the damage I could have done all these years had I used flags, and backed up 900 yards.


Tom

You are one with the wind little one.

 

[shoot4fun]

My first powder charge workup with this rifle. Any initial thoughts as to if I should do another powder charge test or if there’s a charge that stands out to you guys where you would start some seating depths tests at…no chrono data available. Any and all thoughts appreciated. I’m very coachable. View attachment 1391572

I have a couple of 6BRA test targets that look about like that and they were 100 yard targets too. I decided that barrel SUCKED and I moved on. BTW, it did that with Vapor Trails and both H4895 and RE15.5. My other BRA barrels came in right away with only one test session.
I would try a 100 yard OCW test, as described by the man Dan Newberry or a Audette Ladder Test at 300 yards. The latter is pretty easy to read when you are shooting an E-Target or have a damn good spotting scope.

 

[CaptainMal]

All that wind flag talk is great if you know how to use them. In his situation, how much do you hold off when the flags come up? Been shooting for years and have never come close to figuring it out.

It would take years of practice and experience to know just how to use a wind flag when dealing with .1-.3" distances on a 100 yard target. For groups, just pick out what is hopefully the same conditions and make the shots.

 

[AlNyhus]

All that wind flag talk is great if you know how to use them. In his situation, how much do you hold off when the flags come up? Been shooting for years and have never come close to figuring it out.

The point of testing with wind flags is that you don't hold off. You wait for the flags to be the same for every shot. That's the only way to do any meaningful testing for results that will repeat.

It would take years of practice and experience to know just how to use a wind flag when dealing with .1-.3" distances on a 100 yard target. For groups, just pick out what is hopefully the same conditions and make the shots.

With wind flags, there's no hoping. You know.

 

[AlNyhus]

I would try a 100 yard OCW test, as described by the man Dan Newberry or a Audette Ladder Test at 300 yards.

I've always been fascinated by how the OCW method is supposed to work.....unless the gun is puttin' 'em in one hole already. -Al

 

[gunsandgunsmithing]

The point of testing with wind flags is that you don't hold off. You wait for the flags to be the same for every shot. That's the only way to do any meaningful testing for results that will repeat.

With wind flags, there's no hoping. You know.

Yep...There's an art to using flags to their full potential that we're all still learning. But to your point, it doesn't take years of experience to know when NOT to shoot or to see a shot pop out and then notice a flag standing out that wasn't, right before you shot. If the gun, load and shooter are all working, shots go in predictable locations even in a switch. You can tell if it went where in should IN SPITE of the shooter mistake. It doesn't take a lifetime at all to benefit greatly from flags...even just surveyor tape on coat hangers.

 

[Bill Norris]

I've always been fascinated by how the OCW method is supposed to work.....unless the gun is puttin' 'em in one hole already. -Al

I was fascinated by how it "didn't work" every time I tried. LOL. Could not tell anything at all about it at 100 or 300 yds. I'll stick to group shooting @ 100 yds. to find my loads.

 

[gunsandgunsmithing]

I was fascinated by how it "didn't work" every time I tried. LOL. Could not tell anything at all about it at 100 or 300 yds. I'll stick to group shooting @ 100 yds. to find my loads.

Lol! Me too but the consensus seems to be that people believe it gets them "close". Anything that gets people to move tuners(if using one) in tiny increments is a good thing. If they think they're close, they might tend to move the tuner a mark at a time. Well, what have I preached for years now...You're never more than a few marks away with a tuner. We all win! Boy, that ocw is sure great! LOL!

 

[Bill Norris]

Lol! Me too but the consensus seems to be that people believe it gets them "close". Anything that gets people to move tuners(if using one) in tiny increments is a good thing. If they think they're close, they might tend to move the tuner a mark at a time. Well, what have I preached for years now...You're never more than a few marks away with a tuner. We all win! Boy, that ocw is sure great! LOL!

Total agree with moving the tuner in small increments. I have found that 1/2 increment sometimes will be a "sweeter spot" with the E C Tuner/Brake.

 

[Coyotefurharvester]

I would take a slightly different interpretation of the targets, his sighters and the charges closest to the sighters were the most consistent poi. I would run my seating test in the middle of that "node". See if the group's will tighten, and if there is marked improvement, test at 300 and use the drop to get a velocity estimate(since he doesn't have a chronograph?).

 

[gunsandgunsmithing]

Total agree with moving the tuner in small increments. I have found that 1/2 increment sometimes will be a "sweeter spot" with the E C Tuner/Brake.

I do with mine too at times but I don't usually move it quite that small unless conditions are great and I can see a positive and predictable result from it. Or else, what is there to say I didn't go the wrong way or shoulda left it alone. But I agree when conditions are ideal or I've done it when I had nothing to lose, too.

 

[gunsandgunsmithing]

I would take a slightly different interpretation of the targets, his sighters and the charges closest to the sighters were the most consistent poi. I would run my seating test in the middle of that "node". See if the group's will tighten, and if there is marked improvement, test at 300 and use the drop to get a velocity estimate(since he doesn't have a chronograph?).

I give up until he shoots over flags. I'm guessing without them.

 

[Rat Rifle]

All that wind flag talk is great if you know how to use them. In his situation, how much do you hold off when the flags come up? Been shooting for years and have never come close to figuring it out.

It would take years of practice and experience to know just how to use a wind flag when dealing with .1-.3" distances on a 100 yard target. For groups, just pick out what is hopefully the same conditions and make the shots.

I have watched what the Rail Gun Shooters do. They sit with their finger on the trigger, watching the flags until a favorable condition occurs, then touch the round off. I think that is “picking” ? If the condition holds, they “run” it. But Erick Cortena has brought this up. What happens when your picking your way through a relay, the wind flags go nuts, and your running out of time ? There is no choice but to finish shooting that I can see.

A serious challenge for a flag reader would be to shoot a match at White Horse Range in West Virginia. On an average day or a good day it is bad enough. On a bad day it is totally beyond logic. Flags all over the range, and none of them seem to go in the same direction. Then they switch! On top of that, on summer afternoons, the mirage is as bad as anywhere. Some skilled shooters seem to have an edge on it. Jeff Godfrey comes to mind. But I guess most go with their last sighters, run um off, and hope for the best. I once watched a shooter who is usually at the front of the pack decide to pick through a relay. Those targets didn’t make the middle of the pack.

Also, in My limited opinion, different shooting disciplines have to approach wind and mirage differently.

 

[gunsandgunsmithing]

I have watched what the Rail Gun Shooters do. They sit with their finger on the trigger, watching the flags until a favorable condition occurs, then touch the round off. I think that is “picking” ? If the condition holds, they “run” it. But Erick Cortena has brought this up. What happens when your picking your way through a relay, the the wind flags go nuts, and your running out of time ? There is no choice but to finish shooting that I can see.

A serious challenge for a flag reader would be to shoot a match at White Horse Range in West Virginia. On an average day or a good day it is bad enough. On a bad day it is totally beyond logic. Flags all over the range, and none of them seem to go in the same direction. Then they switch! On top of that, on summer afternoons, the mirage is as bad as anywhere. Some skilled shooters seem to have an edge on it. Jeff Godfrey comes to mind. But I guess most go with their last sighters, run um off, and hope for the best. I once watched a shooter who is usually at the front of the pack decide to pick through a relay. Those targets didn’t make the middle of the pack.

Also, in My limited opinion, different shooting disciplines have to approach wind and mirage differently.

Lol! We call that normal down here!

Seriously though, it's tough if you get caught. The only thing worse is shooting in a switch. At least you can guess if you saw it before it was too late. Sighters are a huge help if you have them. If not, that's when the cream rises to the top but the best shooter can get burned by it too.
Part of the trick is knowing when to start a group if you're a runner. It still doesn't work as planned all of the time.