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Sako Finn bear twist Rate

Sako Collectors Club Discussion Forum

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Hi Johan,
I think your rifle has a 1 in 10 twist, Some other members that are more versed about such things than I, will please chime in. The 30/06 is a very good Caliber & is used all over the world for many kinds of game animals. Pics. would be welcome!! B/T
 
Welcome Johan, What game do you hunt with your 3006. We have a few other members from RSA. Wayne
 
Bucktote said:
Hi Johan,
I think your rifle has a 1 in 10 twist, Some other members that are more versed about such things than I, will please chime in. The 30/06 is a very good Caliber & is used all over the world for many kinds of game animals. Pics. would be welcome!! B/T
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It seems these posts are getting somewhat out of order. New system has kinks, How may I help? B/T
 
I do have a Finn Bear delux in 3006, would like to know the twist rate so I can get the best bullets for the rifle in order to get the best performance from the gun
 
Sako L61r twist rates: circa 1961

.264 - 1-9”

.270
.30-06
.338 WM - 1- 10”

.300 H&H
.375 H&H - 1- 12”

Sako L579 Twist rates: ‘61

.243
.308 - 1-10”

.244 - 1- 12”

Sako L 46 / 461 Twist rates: ‘61

.222
.222 mag - 1 - 14”

Early barrels had 12 lands and grooves!

Bloo
 
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Note that Sako twist rates may be the near metric equivalents when expressed in inches. For instance, my .244 measures appx 11.25", not the published 12". That appx 11.25 might be 28 or 29, cm, depending on how accurately it is measured. 1-12" would equal about 30.5 cm.

I've seen the .222 Magnum twist rate listed at 1-12" for the Sako Vixen. Not sure if it was different than the .222, or if someone just made an assumption and published it. Similarly, the very early .222 barrels on the L46 appear to have the same barrels used on the Hornets and measure appx 1-16".

I hear people ask the question about barrel twist frequently these days. It seems to be the fashion to blame accuracy problems on "twist". Regardless, the only way to actually know the twist of a given barrel is to measure it with the "tight patch on cleaning rod" method.
 
I wonder if Sako ( or other European manufacturers) has ever published or otherwise posted actual metric twist rates? In European publications maybe? That would make sense…
 
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bloorooster said:
I wonder if Sako ( or other European manufacturers) has ever published or otherwise posted actual metric twist rates? In European publications maybe? That would make sense…
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Just Google CIP twist rate specs & a chart showing all the twist rates in millimeters per revolution for all CIP recognized cartridges is available. As stonecreek said they are the metric equivalent to the SAAMI specs, but not "exactly" the same. For example the CIP twist for the 222 Rem is 356mm which equals 14.02". Very close to the SAAMI spec of 14". The 6.5 Swede is 220mm which is 8.67" but the SAMMI spec is 9".
 
Lol…I keep forgetting that I have the answers to everything right here in the palm of my hand…
paulsonconstruction said:
Just Google CIP twist rate specs & a chart showing all the twist rates in millimeters per revolution for all CIP recognized cartridges is available. As stonecreek said they are the metric equivalent to the SAAMI specs, but not "exactly" the same. For example the CIP twist for the 222 Rem is 356mm which equals 14.02". Very close to the SAAMI spec of 14". The 6.5 Swede is 220mm which is 8.67" but the SAMMI spec is 9".
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I had just clicked “post reply” when the thought crossed my mind. Of course I can google it.
I guess I have more fun asking you guys
 
Interesting comment from Bloo

.300 H&H
.375 H&H - 1- 12”

300 H&H with 1-12" ??? Is that a typo or good info from a reliable source - not doubting your info - just surprised and will check mine at next opp as had always assumed it was 1-10"

or am i misreading something here - also very possible

cheers
 
CIP/SAAMI spec for the 300 H&H is a 10 twist. The 375 H&H is a 12 twist. The 30-06 is a 10 twist, so I doubt Sako would have made 12 twist 30 cal barrels just for the 300 H&H. I think Bloo made a typo. Measure yours & let us know.
 
Early 196o’s FI catalog…it lists both H&H chamberings with 1-12” could still be a mistake tho. Catalogs are quite notorious for misinformation. I’m just notorious for sharing it! Sorry guys 😬
 
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Yes all very interesting But they did make 30 cal barrels in 12" ie then chambered for 308. - I will check mine to see and report back.
 
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