[kriggevaer]

Author Topic
sbhva
Moderator



USA
1477 Posts
Posted - 01/28/2007 : 9:43:46 PM
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OK Group;

Here are the rules for this thread. I want only actual observed twist rates from your rifles posted in this thread. Do not post data that has been published somewhere else. I just want your own observed data. The information should be posted in the form of Model; first 3 digits of the serial number (so we can see if changes happen over time; the twist rate observed.

If you do not know the model of your rifle, post a sperate thread and ask the group for help! Once we have determined the model, then you can post your observation in this thread.

Keep the discussion focused! Don't run off on tangents! Only Swedish Commercial rifles please! Any posts that I feel aren't staying on topic will be deleted.

For those of you who have already posted your data, please re-post it here so we will have it all in one place. This should answer the question once and for all about Husqvarna twist rates.

Ready? .... Set? ....GO! Have fun with it!

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Steve



airdale
Gunboards.Com Silver Star Member



USA
933 Posts
Posted - 01/28/2007 : 10:32:32 PM
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M640 in cal 30-06, S/N 120xxx, twist= 1 in 11.5"

M255A .22LR 523XX 1 in 15.5"

M46 9.3x57 47xx 1 in 14

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Edited by - airdale on 04/04/2007 8:23:14 PM


kriggevaer
Gunboards.Com Gold Star Member



USA
1709 Posts
Posted - 01/30/2007 : 9:32:50 PM
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640 113XXX .30-06 1 in 9.5

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kriggevær

"Roland was a warrior from the Land of the Midnight Sun..."



GSP7
Gunboards Premium Member



USA
225 Posts
Posted - 01/30/2007 : 9:40:14 PM
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640 115xxx .270 1-9.5"
640 133xxx 3006 1-9.5"
640 147xxx 3006 1-9.5"



Ordtech
Gunboards Premium Member



USA
150 Posts
Posted - 01/31/2007 : 7:38:54 PM
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46 19xx 9.3x57 1-14"
640 146xxx 8x57 1-10"


Remington720
Gunboards Member



USA
20 Posts
Posted - 01/31/2007 : 11:45:58 PM
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1900 30-06: 1 in 12" twist
J C Higgins M51L (1640 action, American barrel) 30-06 1 in 10" twist


Bob58
Gunboards Member



38 Posts
Posted - 02/03/2007 : 10:29:58 AM
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640 100xxx 220 Swift 1-14.25"
640 151xxx 220 Swift 1-14.25"


jaeger justnaes
Gunboards Member



Norway
26 Posts
Posted - 03/05/2007 : 3:22:22 PM
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Model 4 - Serial# 579xx - 20Ga(.658) rifle - Twist: 1:72




Beck
Gunboards Member



USA
32 Posts
Posted - 03/27/2007 : 11:17:32 PM
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Model 46, 9.3x57, mfg 1936, 1-14" twist.

R,
Dennis Beckwith

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"40 knots, no smoke"


Baribal
Gunboards Member



Canada
93 Posts
Posted - 04/04/2007 : 1:35:31 PM
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Hi to you all

here's my observations;
HVA 5000? Imp - S/N 29354X - 308 Win - 10.5:1 (265mm:1)
M38 1942 (defunct - RIP 2005) S/N - 665393 - 6.5X55 - 8:1 (200m:1)
M96 (649) - S/N 9002X - 9.3X62 - 14:1 (355mm:1)

that's it!

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Coagula / Solve


LeeSpeed
Gunboards.Com Gold Star Member



USA
1024 Posts
Posted - 04/04/2007 : 2:22:54 PM
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Both 9,3x57:

M146 c.1939;
Twist 15"

M46 1942;
Twist 14"


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For God so loved the world that he gave his only Son, that whosoever believes in him should not perish but have everlasting life. Jn 3:16 Verbum Domini Manet in Aeternum.



12.7x44R and 8x58RD Rolling Blocks
The twist should be 41,2" for all the m/1867 models, regardless of manufacturer. This twist was actually inherited from the m/1860 rifle, which had a much higher V0 than the m/1867 cartridge.

Twist for the m/1867-89 is 11,3".

Originally posted by Pettson

 

[SD Hunter]

Twist on 1900 223 Heavy Barrel

As a couple of you are aware, I managed to pickup a custom 1900 Sporter in 223 with a heavy target barrel. I understand that there may be some debate about whether it is an original custom from Sweden. No matter to me. It shoots like a dream and has that wonderful 1900 action. For the record, it shoots half MOA with 52 gr & 55 gr. HPBTs. I personally checked the twist and it is 1:14.

SD Hunter

 

[Yukoner]

Among other Husqvarnas, I have two Model 4100 rifles in 7X57, both have barrels that are a tad faster than 1:12.5 twist .

This always seemed strange to me, but that is for another thread, as Steve has very properly set out.

Will measure the twists on my 358 Norma, 30-06s and 270s, and get back here.

Ted

 

[josquin]

Husky 46 in 9.3x57

Mine is serial #420xx and measures 1-14. (Actually a hair under, perh. 1-13 15/16 if you want to get persnickety about it. Probably 1-35 cm in the orig. metric designation.)

Stuart

 

[kriggevaer]

HVA 1600 Series Rifles - Twist

This information came out of a 1967 (or thereabouts) Tradewinds catalog, so they are probably factory figures for very late production of the 1600 series rifles. The twist rates apply to all the different variations, i.e, Lightweight, Crown, Imperial, Husky.

.243 and .270 - 4 lands/grooves - 10"
6.5x55 - 4 lands/grooves - 8"
.308 and .30-06 - 4 lands/grooves - 12"
7mm Mag - 6 lands/grooves - 9"
.358 Norma Mag - 6 lands/grooves 12"

These are the standard calibers, but as we know other calibers did come out of the factory and I haven't had time to research if there were changes in the twist rate through the production life of the 1600 rifles.

Woodbeef sent me the catalog - Tack så mycket Woodbeef!

 

[Woodbeef]

Going back to the # 15 Tradewinds Catalog,the listed twists are all the same. The 7x57 is also listed at 4 lands & grooves with a 12" twist.

 

[Float Pilot]

My late 1950s vintage Husqvarna (4000 export) 1600 type lightweight rifle in 30-06 with a 520mm (20 .75in) barrel.

1 in 9.5 inch twist (1 in 235mm)

It shoots 200 grain bullets just fine. It love the 190 grain boat-tails

 

[Yukoner]

Okay, finally got around to posting some more twists.

270s are all 1:10

30-06 are all close to 1:12

358 Norma Mag is 1:12 or very close to that

9.3X57 is 1:14

Ted

 

[ottsixx]

7x57 twist rate

I just bought a husqvarna 7x57 at auction and when I checked the twist rate in the bore there are 4 lands/grooves and I measure it a 1:12,how in the world do I find my model # on this rifle and its year of manufacture.....

 

[Float Pilot]

how in the world do I find my model # on this rifle and its year of manufacture.....

Give us a couple up close photos of the action and the serial number range.

 

[Daryl S]

M17? 13 bore (takes 16 bore brass case) straight rifled for round ball and black powder, no twist, right barrel.
Left barrel is smooth 16 bore for brass, paper or plastic.

 

[sbhva]

I just bought a husqvarna 7x57 at auction and when I checked the twist rate in the bore there are 4 lands/grooves and I measure it a 1:12,how in the world do I find my model # on this rifle and its year of manufacture.....

Please start a new thread for this question!

 

[GSP7]

9,3 x57 M146 #26xxx, 1-15"

2- 3006s 640, #133xxx,147xxx, 1-9.5"

270 640 #115xxx, 1-9.5"

 

[wwbirds]

Carl Gustaf 22-250 nitro

Serial number 631XXX . 1:14 ratio, just bought it today and had scope installed and preliminery group looks great.
Rob

 

[Ta338]

I measured my sporterized Husqvarna -made 8X58RD Rolling Block. Twist is 300mm per turn which is 11.8"

 

[kriggevaer]

Husqvarna Bore Twist Ratios

Thought a compilation of the data that has been received so far would be an interesting exercise. For the way I have the data matrix set up only the entries with model numbers were used. In the working data matrix I also have a column for serial number, but since the data sample is pretty low right now it really doesn't do anything to detail the serial numbers that the members entered.

But, even with the low sample number, there are divergences from some of the published literature out in the world and from old Tradewinds catalogs. Unfortunately, the sample size is too low to be able to start seeing much in the way of patterns, but there are questions about the twist rates in .30-06 chambered 1640 models, i.e., there are two twist ratios that show up, 9.5 and 12. The Tradewinds catalog says 12 and two members' rifles measure 9.5.

That's why it is important to include the model and at least part of the serial number when entering rifles.

 

[Higgins]

My 1640/J. C. Higgins 51L in .30/06 measures exactly 10.0", as would be expected with an American (High Standard) barrel.

 

[Baribal]

Twist rate of Tradewinds standard calibers.
From the Tradewinds No. 20 (1967)

 

[gunboat]

J C Higgins M51-L (1640 action, American barrel) .243, 1 in 9" twist

 

[BeaverMeat]

I have samples of two different barrel riflings in 8x57 chambered 640s

1:10 with wide lands
1:9 with narrow lands

All my 648s with the 1:9 twist have the adjustable rear sight.