.243 fast twist and varmint bullets

[An Sionnach]

Morning all
My Tikka 243 is showing her use more so than her age and it’s time for either new Tikka or a re-barrel
Choice of barrels available here could be very limited so I don’t want to rule out the likes of fast 8 in 1 twist with bullets in the 58gr to 75gr range as they will be in my preferred range for mostly fox shooting
So my question is,has anyone her experience of using these weights/twist combination and how was accuracy?

 

[Bowland blades]

Morning all
My Tikka 243 is showing her use more so than her age and it’s time for either new Tikka or a re-barrel
Choice of barrels available here could be very limited so I don’t want to rule out the likes of fast 8 in 1 twist with bullets in the 58gr to 75gr range as they will be in my preferred range for mostly fox shooting
So my question is,has anyone her experience of using these weights/twist combination and how was accuracy?

with the light thin jacketed rounds a fast twist might very well "dust" bullets in flight like the 55 and 58 varmint bullets . If they dont ( and external conditions plays its part ) they will stabilize , its a case of will they survive the flight to target spun that fast ?

 

[NullMac]

Tell you next week

 

[Sinistral]

Morning all
My Tikka 243 is showing her use more so than her age and it’s time for either new Tikka or a re-barrel
Choice of barrels available here could be very limited so I don’t want to rule out the likes of fast 8 in 1 twist with bullets in the 58gr to 75gr range as they will be in my preferred range for mostly fox shooting
So my question is,has anyone her experience of using these weights/twist combination and how was accuracy?

Choose your own Tikka rifle from a variety of innovative models

Tikka is able to meet the requirements of modern hunters by combining traditional gunsmith know-how with advanced technology. Choose your own Tikka rifle now!

choose.tikka.fi

If you're looking seriously at a new Tikka then you'll be aware that all their .243 model variants are now 1:8" fast twist, with the Sako models to follow. My Tikka M595 in the traditional .243 1:10" twist works with whatever it's fed in Sierra bullets from 60gr HP - 100gr SP. You'll still have the option to rebarrel in the slower twist, but it's difficult to believe that Sako haven't already tested out the practical effects of this switch with the entire range of bullet weights. In light of this, vaporising bullets at excessive RPMs seems a far fetched notion to me.
BTW, first post of yours I've seen; your forum name means 'the lady fox' which is probably unintentional. Changing it to 'an t-sionnach' will make a man of you.

 

[bbrc]

58’s have been fine in quite a few 1 in 8” 243’s i have used
Shot well too

 

[Bowland blades]

Choose your own Tikka rifle from a variety of innovative models

Tikka is able to meet the requirements of modern hunters by combining traditional gunsmith know-how with advanced technology. Choose your own Tikka rifle now!

choose.tikka.fi

If you're looking seriously at a new Tikka then you'll be aware that all their .243 model variants are now 1:8" fast twist, with the Sako models to follow. My Tikka M595 in the traditional .243 1:10" twist works with whatever it's fed in Sierra bullets from 60gr HP - 100gr SP. You'll still have the option to rebarrel in the slower twist, but it's difficult to believe that Sako haven't already tested out the practical effects of this switch with the entire range of bullet weights. In light of this, vaporising bullets at excessive RPMs seems a far fetched notion to me.
BTW, first post of yours I've seen; your forum name means 'the lady fox' which is probably unintentional. Changing it to 'an t-sionnach' will make a man of you.

Oh no it happens for real was common in F class open at one stage with 6.5 284 etc but that was jacketed lead in theory and with Scotland again saying they will go 85 grain for reds .... not so sure there is a big problem with the 243 . Does copper dust in flight using copper monolithic bullets ? Dunno but i doubt it not tried it but i doubt it would with TTSX

 

[Lancaster]

Oh no it happens for real was common in F class open at one stage with 6.5 284 etc but that was jacketed lead in theory and with Scotland again saying they will go 85 grain for reds .... not so sure there is a big problem with the 243 . Does copper dust in flight using copper monolithic bullets ? Dunno but i doubt it not tried it but i doubt it would with TTSX

Really can't see a solid spinning apart, thin jacketed lead yes, but copper, I also doubt it.

 

[Bowland blades]

Really can't see a solid spinning apart, thin jacketed lead yes, but copper, I also doubt it.

there are some mono bullets that might but ttsx , more likely the king visits me next week

 

[An Sionnach]

Choose your own Tikka rifle from a variety of innovative models

Tikka is able to meet the requirements of modern hunters by combining traditional gunsmith know-how with advanced technology. Choose your own Tikka rifle now!

choose.tikka.fi

If you're looking seriously at a new Tikka then you'll be aware that all their .243 model variants are now 1:8" fast twist, with the Sako models to follow. My Tikka M595 in the traditional .243 1:10" twist works with whatever it's fed in Sierra bullets from 60gr HP - 100gr SP. You'll still have the option to rebarrel in the slower twist, but it's difficult to believe that Sako haven't already tested out the practical effects of this switch with the entire range of bullet weights. In light of this, vaporising bullets at excessive RPMs seems a far fetched notion to me.
BTW, first post of yours I've seen; your forum name means 'the lady fox' which is probably unintentional. Changing it to 'an t-sionnach' will make a man of you.

Yes I’ve heard that Tikka are now offering 1/8 twist but none on the shelf as yet with my local rfd

 

[An Sionnach]

58’s have been fine in quite a few 1 in 8” 243’s i have used
Shot well too

Thanks bbrc
That’s what I want to hear

 

[Jax]

Check out primal rights on YouTube. He was shooting 55gr Noslers out of a 6mm PRC with 7.5 twist around 4500fps if I recall correctly

 

[Brian243]

I had my T3 .243 re-barrelled by Mike Norris with a 1:7.5 twist barrel at the beginning of the year, he did a brilliant job. I considered a new T3 but the long wait for a variation put me off, Mike gave a six week turn round including proofing. The new barrel shoots 65 grain V-Max/N140 into one hole groups, deadly on fox. It also shoots 80 grain TTSX/N555 and 85 grain Sierra GameKing/N140 to a similar standard. Interestingly, the most accurate loads with the new barrel are exactly the same as I was using through the original standard twist barrel. I’ve seen no downsides using a fast twist barrel and will try 90 grain LRX when I have used up my stock of TTSX.

 

[An Sionnach]

I had my T3 .243 re-barrelled by Mike Norris with a 1:7.5 twist barrel at the beginning of the year, he did a brilliant job. I considered a new T3 but the long wait for a variation put me off, Mike gave a six week turn round including proofing. The new barrel shoots 65 grain V-Max/N140 into one hole groups, deadly on fox. It also shoots 80 grain TTSX/N555 and 85 grain Sierra GameKing/N140 to a similar standard. Interestingly, the most accurate loads with the new barrel are exactly the same as I was using through the original standard twist barrel. I’ve seen no downsides using a fast twist barrel and will try 90 grain LRX when I have used up my stock of TTSX.

Thanks Brian243
One option that is available are proof research barrels in 6mm with 1:7.5
All ammunition used will be factory so the weights your using will cover what’s available too