Feel free to call me a ******* if this subject has been covered but I did a search. I'm considering a factory rifle in 6xc that is only available in 9" twist. Berger's stability calculator says that's "marginal for 105 VLDs or Hybrids. If anyone is shooting those bullets out of that twist please weigh in. I understand 8.5 might be the ideal twist and anything faster might cause weaker constructed bullets to possibly come apart in the barrel. I'm sure there are people here with real life experience on the subject. Thanks
Twist for Berger 105 VLDs
- Thread starter bedrok
- Start date
Help Support Long Range Hunting Forum
lancetkenyon
Well-Known Member
In a 6XC, I highly doubt you would ever get the speeds to vaporize a bullet from the barrel unless you go really light like the 55-60 grainers.
I run a 1:7.5" twist in my 6CM, slightly faster than the 6XC, but not much. I shoot the 105 Hybrid @ 3101fps with phenomenal results. But I never plan on shooting anything lighter than a 95 TMK for varmints. A 55gr might be too light to survive the rotation.
I did, however, run the 85 V-max in a 6SST @ 3650+in a 1:7.5" and had them "poof-gone" out of the barrel. It was really cool to witness firsthand.
I run a 1:7.5" twist in my 6CM, slightly faster than the 6XC, but not much. I shoot the 105 Hybrid @ 3101fps with phenomenal results. But I never plan on shooting anything lighter than a 95 TMK for varmints. A 55gr might be too light to survive the rotation.
I did, however, run the 85 V-max in a 6SST @ 3650+in a 1:7.5" and had them "poof-gone" out of the barrel. It was really cool to witness firsthand.
Last edited:
Farmerboy78
Well-Known Member
8twist is perfect for a 105gr. I'd run a 95 in a 9twist.
How do you like the TMKs. Ever since I ran out of Sierra FMJs I've been looking for an accurate bullet that won't tear the crap out of fur bearers when it exits. My next experiment was going to be Norma FMJs
I'm building a 6 Dasher for the 105's which is just a bit slower then the 6XC.
I'm going with a 7.5 but feel I could easily run an 8. I fear the 9 would be slow for the 105's at XC speeds.
I'm going with a 7.5 but feel I could easily run an 8. I fear the 9 would be slow for the 105's at XC speeds.
lancetkenyon
Well-Known Member
They work good on coyotes. They do usually leave a big exit hole though. They tear smaller stuff up though. I would not consider them fur friendly.
