Why did Berger change their twist rates?

[Siso]

When I had ordered my rifle, Berger's recommended twist for a 130gr 6.5mm VLD was 1 -9". Now it's 1 -8"? How often were the 130's not working in the 1 - 9" to need the increase in the recommended twist?

 

[J E Custom]

When I had ordered my rifle, Berger's recommended twist for a 130gr 6.5mm VLD was 1 -9". Now it's 1 -8"? How often were the 130's not working in the 1 - 9" to need the increase in the recommended twist?

I'm not sure why they should /would change the rate of twist for the 130gr bullet
because the recommended twist for the 6.5 is 120gr=1 in 10, 140gr = 1 in 9 twist,and
anything over 140gr should need a 1 in 8 twist.

I don't think you will have any problems with the 1 in 9 twist at all . in fact I think you chose
the right twist for your barrel. and the 120s,130s,and 140s should do well.

Just My opinion

J E CUSTOM

 

[apexmtnman]

I have an old box of 140 grain Berger 6.5's and they say 1 in 9 twist or faster with a .640 BC. I also have a new box of 140's that say 1 in 8 twist or faster with a .595 BC. So I guess they have changed their suggested barrel twist.

 

[su37]

Berger really missed me up on this.

I ordered a 1/9 barrel to shoot 6.5 140's and bought 500 bullets to start me out with.

 

[J E Custom]

Berger really missed me up on this.

I ordered a 1/9 barrel to shoot 6.5 140's and bought 500 bullets to start me out with.

I still think you will be OK with the 1 in 9 twist especially if your velocity is in the upper
range of the 6.5.

J E CUSTOM

 

[su37]

I wish, they aren't working out.

 

[J E Custom]

I wish, they aren't working out.

Sorry to hear that !!!!!!!!!

You may have to cut your losses and switch to a conventional bullet .

Try a 130 gr accubond and I think you will be pleased.

Just in case there is another problem keep the Berger's until you are happy with another bullet
and then sell the Berger's.

J E CUSTOM

 

[Ernie]

When I had ordered my rifle, Berger's recommended twist for a 130gr 6.5mm VLD was 1 -9". Now it's 1 -8"? How often were the 130's not working in the 1 - 9" to need the increase in the recommended twist?

What will the barrel be chambered in?
My guess is that the 130's will do just fine.
You won't know until you try.

 

[Siso]

It's a 1-8.5 and so far it's shooting the 139 scenars fine. But then again it's still warm out. If the twist was border line I wouldn't think that I would have issues unless it's cold.

 

[elkaholic]

I shot 130 accubonds in a 10 twist under 1/2 moa consistently. Don't give up on the 140 bergers until you try seating them INTO the lands up to .020." I have a 6.5 sherman with an 8 twist and they won't stay under an inch unless I seat them .020 into the lands and then they shoot 1/2" or better......Rich