Barrel Evaluation

[Terry]

Barrel Evaluation

You have 3 new 6mm 1:8 twist barrels in 6 Dasher. All chambers were cut with the same reamer. They are identical. How do you evaluate these 3 barrels?

 

[tuttlefarm]

The barrel with the widest accuracy node would be #1

 

[savagedasher]

The barrel with the widest accuracy node would be #1

Shoot them

Barrel Evaluation

You have 3 new 6mm 1:8 twist barrels in 6 Dasher. All chambers were cut with the same reamer. They are identical. How do you evaluate these 3 barrels?

Shoot them . Larry

 

[Terry]

Moving on to How?

Do you shoot a pet load in all three or do a full blown workup on each?

 

[Jason Boersma]

I,ve heard of people doing it both ways but I believe the only way is to break in each barrel and do full load development for each barrel. I had 3 HGTV barrels I just picked one to start with and shot it for a season then switched to the next barrel for the next season.

 

[Terry]

Jason

That is the way I have done it in the past.

May try the other method this year.

 

[Dusty Stevens]

Gotta break it in, develop its best load then see how it acts in the wind. If its predictable its a good barrel and can move on for further testing. If its got quirks or doesnt look like your best barrel within 250rds its a tomato stake. Life is too short to waste time wishing a barrel into shooting good

 

[johara1]

Gotta break it in, develop its best load then see how it acts in the wind. If its predictable its a good barrel and can move on for further testing. If its got quirks or doesnt look like your best barrel within 250rds its a tomato stake. Life is too short to waste time wishing a barrel into shooting good

+1….. jim

 

[Immike]

Terry, I read a article in PS mag once about a company called barrel scan I believe was the name. For a fee ($250) they scanned the barrel for twist rate variance and mapped the entire barrel. The selling point was that it told you which end to cut off and saved time testing a bad barrel. Mostly usefull to the short range people with short barrels and thick wallets. Lol

 

[Dusty Stevens]

Hey mike we dont buy into that snake oil and cut both ends of the barrel according to weight. You get more weight off cutting the big end than more of the smaller end.

 

[Immike]

Hey mike we dont buy into that snake oil and cut both ends of the barrel according to weight. You get more weight off cutting the big end than more of the smaller end.

Lol, not sure if that project ever got off the ground. It was a interesting article none the less! It showed the twist rate speeding up and slowing down through the length of the barrel as if the rifling tool caught up occasionally with itself.

 

[Dusty Stevens]

Thats the best way ive heard of to make sure a barrel never shoots right next to a borescope. I evaluate on paper- getting a report like that id never be able to shoot that barrel

 

[Eddie Harren]

Thats the best way ive heard of to make sure a barrel never shoots right next to a borescope. I evaluate on paper- getting a report like that id never be able to shoot that barrel

It is not uncommon for button rifled barrels to be slightly a different twist than marked. Please pay close attention to the word "slightly".