I'm building a wildcat using a 6.5x54 MS case opened up to .358, and I've picked up a take off barrel ( mainly for testing / experimental purposes to start with ) with a 1 in 12 twist.

My question is....in a 35 remington sized case, what effect would this twist rate have ?

Roger

None. That is the twist I use for all 35 calibers from 35 Rem to 358 Norma.

Thanks Tom.

Roger

I agree, 1-12 is fine, as I've used it in a 358 Win, 35 Whelen and 350 Rem Mag.

I own rifles in 35 Whelen, 358NM, & 358STA. They all have 1:12 twist barrels. I sold/traded away all of my previous 35 caliber rifles with a 1:16 twist. But I like to use the medium to heaviest grain bullets in all of them (250NP, 280SAF, & 310 Woodleighs). If the animals are much smaller like Antelope, Deer, etc., I'm using my 25-06 or 280Rem. anyway.

I have a 35 Whelen AI with a 14" twist barrel, and it will stabilize 275 gr Hawk bullets just fine. 1 in 12" is a little faster twist than you need for a 35 Rem sized case, but it should work just fine.

Thanks for all the info

Roger

I've always thought it strange that the standard twist rate for 35 whelen was 1 in 16 when 375s tend to be 1 in 12 and all other bores from 338 down tend to be 1 in 10. Was that just to make sure it would stabalize 185 grain bullets?

It was simply a mistake to the slow side of the range of twists that might work. 14 sure would have been a better choice for a first try and as mentioned 12 seems darned fine.

The 358 Winchester is 1:12. I strongly suggest 1:12.

quote:

Originally posted by 376 steyr:
I've always thought it strange that the standard twist rate for 35 whelen was 1 in 16 when 375s tend to be 1 in 12 and all other bores from 338 down tend to be 1 in 10. Was that just to make sure it would stabalize 185 grain bullets?

It was bc Remington went stupid and cheap using the same twist as the 35 Remington (1:16 around a 200 grain bullet) when they legitimized the 35 Whelen. No one used lighter than 225 grain bullets during the history of the 35 Whelen.

quote:

Originally posted by 376 steyr:
I've always thought it strange that the standard twist rate for 35 whelen was 1 in 16 when 375s tend to be 1 in 12 and all other bores from 338 down tend to be 1 in 10. Was that just to make sure it would stabalize 185 grain bullets?

When Remington legitimised the 35Whelen, nobody really thought about projectile weights beyond 250gr. Yet when the Whelen was developed, there were both 275gr and 300gr available, hence the 1:12" used originally.
Cheers...
Con

My whelen is a 1 in 14 rate. It shoots 225 grains into a clover leaf but no so with the 250 grains.