What is latest thinking in USA re Twist Rate for Berger 105 Hybrid
- Thread starter bobeager
- Start date
I think a7.5 is right . Larry
My new Bartelin Dasher is a 7.5. Seems to be better than my 8.
Last edited:
Jet
Gold $$ Contributor
Rob
No 108 experience here, only 105 Hybrids. I think most folks will opt for a 7.5" or 7.75" twist. I bought a few 8" twists a couple years back and have a supply of them to use. Every 8" twist I have used has shot well for me with the hybrids at elevations from 500' and higher, temps from 40-95F with velocities from the muzzle between 2940-3050.
Rich
No 108 experience here, only 105 Hybrids. I think most folks will opt for a 7.5" or 7.75" twist. I bought a few 8" twists a couple years back and have a supply of them to use. Every 8" twist I have used has shot well for me with the hybrids at elevations from 500' and higher, temps from 40-95F with velocities from the muzzle between 2940-3050.
Rich
I have a 1:7.8 Bartlein chambered in 6XC that was intended for 115DTAC's but likes Berger's 105VLD @ Hybrids better. Never tried the 108.
Later I went with a 1:7.5 (Brux) which shoots both 105's just fine. Have 7.5's in spaceguns chambered in 6HAGAR that also work great @ 200 fps less velocity.
Later I went with a 1:7.5 (Brux) which shoots both 105's just fine. Have 7.5's in spaceguns chambered in 6HAGAR that also work great @ 200 fps less velocity.
drumcorpschamp
Silver $$ Contributor
Rob,
All of my Dasher barrels have been 1 in 8 twist except one, which is 1 in 7.5 twist. I tried the 7.5 twist last season specifically to see what the difference may be with the 105 Hybrids. I did not see any difference or improvement on paper at 1000 yards over my 8 twist barrels. The 108's work in 1 in 8 twist as well.
Doesn't make a difference whose barrel you'll use. Most shoot good/very good. Every once in a while, a great one comes along!
Jerry Ware
I shoot 105 hybrids from a 8 twist Krieger in a straight 6br, no accuracy issues from me. Also use straight 8 twist with same bullet in a 243 with no issues.
I am going to stick with 8's, but am sure 7.75 or 7.5 would work fine too.
I am going to stick with 8's, but am sure 7.75 or 7.5 would work fine too.
Hey rob
Yeah mate I run a 1:8 twist on my 6BR with both hybrids and 108gr for the 500m fly shoots. But I'm building a 6BRX atm but I have ordered a 1:7.5 for my new barrel just to make sure as berger now recommend that for hybrids.
Havent seen much difference in accuracy in 108 and 105 hybrids in the 6BR ... cant wait for dave kerr to finish my 6BRX
Yeah mate I run a 1:8 twist on my 6BR with both hybrids and 108gr for the 500m fly shoots. But I'm building a 6BRX atm but I have ordered a 1:7.5 for my new barrel just to make sure as berger now recommend that for hybrids.
Havent seen much difference in accuracy in 108 and 105 hybrids in the 6BR ... cant wait for dave kerr to finish my 6BRX
Go to the Berger Bullets Twist Rate Calculator to get some information. The calculator will allow you to input information such as muzzle velocity, temperature, altitude and twist rate for a specific berger bullet to check the stability of the bullet and will recommend a minimum twist rate. As an example, a twist rate that may be very stable in Denver may have marginal stability at sea level. When the 105 Hybrids first came out Berger said the Optimal Twist Rate was 1:8" and now they say the Optimal Twist Rate is 1:7". I think the twist rate they recommend is to cover all the different variables involved. I have both 1:7.5" and 1:8" and both seem to work fine but next time I order a new barrel for my 6BR I will probably order a 1:7 since all I shoot in it is the 105 Hybrid and that is what Berger recommends.
www.bergerbullets.com/twist-rate-calculator
www.bergerbullets.com/twist-rate-calculator
I have been 7.5 twist with hybrid bullets from the first time they were available. They definitely shoot better at longer range with faster twist. Larry
Where is this post located?
Nowhere on this forum specifically, I was quoting from a post he'd put up on the NM forum at USRIFLETEAMS.COM.
(Mark you've already found the related thread here?)
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