6xc twist for hybrids

[dgcarter]

Hello, I new to the forum. Been reading/ lurking for a while here. I'm building my first 6xc. I'm looking at shooting 105 hybrids for paper and 105 hunting vlds for deer. I've read that the hybrid is a little longer than the vld. What twist rate are ya'll running with the hybrids? Any issues with the 8 twist? Or do I need anymore to be certain of stabilization. Thanks

 

[r bose]

I just built my first 6xc. Shot it prone, 600 yd match last saturday. I bought a krieger 31" barrel, 7.5 twist for many reasons. I wanted the long sight radius, use R-17, Will shoot 115g DTAC's, I shot 107g Nosler's saturday and they shot great, even while fireforming 22-250 RP brass. Have tested 105's, 107's and 115 DTAC's all with great success.

Not a good length to hunt with but a great prone barrel length and twist.

 

[308warbird]

I have a 1:8 twist. First load tried with hybrids went into .500 horizontal and .300 vertical. I plan to work with that load a little more but 1:8 seems to work fine.

 

[spclark]

1:8 works in true 1:8 barrels, 1:7.5 might be worthwhile if you plan on shooting where it's cool. I shoot 'em in a 1:7.8 6XC Bartlein & 1:7.5 Kreiger (6HAGAR) with excellent results.

 

[Mudcat]

have run 1/8 twist for years and have no issues with 105 class bullets. 115 dtacs work just fine too. 115bergers will stabilize but dont group worth a poot. the 7.5 works with everything.

 

[6xcshooter]

got 3, 8 twist 6xc rifles, 105 hybrids shoot absolutely superb in all of them.

 

[Nomad47]

Yessir. 8 twist it is for 105 Hybrids and 105 Amax. Too many powders to list.

 

[dgcarter]

I will be shooting this during hunting season when the temps are in the 20's. As Spclark pointed out maybe I need a little faster twist for the cold temps? I wish I knew how close to the edge of stabilization the 8 twist was?

 

[Mudcat]

for 105 class bullets you are NOT on the edge. 20F, 100F, wont matter unless you are shooting some ridiculously enemic load. Pick a twist and go shoot.

 

[6Dasher]

I had a 7.75 bartlein that would not get the 115DTAC to shoot, does great with the 105 hybrids. I'd stick with 7.75 in my case, 7.5 to get the dtacs working. I shoot at sea level and 0-30 degrees celsius. 105 loaded with H4350 to 3175fps out of 31".

 

[RyanS]

You guys have a preference on bore diameter? .236 or .237?

 

[spclark]

Either will work well with Berger's 105 Hybrids.

The .236 will see higher pressures quicker and (depending on barrel manufacturer & level of bore finish) may tend to foul faster in early use so load-test with this in mind.

 

[PALarson]

I am shooting 3 6XC's 2 8 twist and 1 7.5 all shoot the Berger Hybreds well. I compete sling at HM level and find the 8 twist to be a great choice. You can't go wrong with them as long as you use the 105- 107 weight bullets. The 115's may or may not work with the 8 twist, if you plan to use any of the 115 bullets by all means select the 7.5. Happy shooting
Paul Larson