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FN Commercial Bolt vs Military

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26 November 2020, 11:18
Doug W
FN Commercial Bolt vs Military
When FN produced their commercial bolt with the swept back bolt handle was that just a military straight bolt altered to swept back or a completely different forging?

I have a couple of uncompleted FN commercial receivers from Sarco back in the day, they have the stripper clip hump (no slot) so I assume they just used the a military forging and milled the hump off for a commercial.

Not sure how they did the bolts.
26 November 2020, 19:56
dpcd
They are welded on. I have heard of a void inside them It is the same bolt. That is undocumented.
Why does it matter?
26 November 2020, 22:09
Doug W
Because I am interested in the manufacturing process and history and it has always been a bit fuzzy to me the actual differences between FN military and commercial.

Often you read claims that the commercial had tighter tolerances and better finish, but I suspect both versions were made with the same steel, same heat treatment (which evolved), same forging dies, and on the same machinery.

The fork in manufacturing was whether it was thumbcut, stripper cut and had the bolt handle cut off and a swept back welded on.

By the time FN went with the double cut breeching collar were they even making military 98s with a single cut anymore?
27 November 2020, 04:01
dpcd
Supposedly FN started the H ring in 1948; all the FN commercial actions I have here are H. I have an FN 1950 military action here somewhere and when I find it I will report what it is. The last FN military rifle was made in 1964 and I can't imagine they were using a C ring when the H had to be cheaper to make.
As far as manufacturing differences in commercial and military FNs; I never noticed any difference in fit or finish; military rifles of the period were very well finished. And many were painted black; the ones used by Belgium and The Netherlands were. L and W crest; king Leupold and Queen Wilhelmina.
27 November 2020, 04:13
theback40
I have an FN that was a 30-06 mil. It has an Imperial crown over an L over ABL and 1951.
It's an H ring. Very nicely made, it has a 35 whelen Imp barrel on it now .... need to finally finish that rifle!
27 November 2020, 04:42
dpcd
That pretty much says it all. If they made them for Belgium with the H ring then they made them all that way. That is the Belgium 1950 model.
For the Armée Belgique Leger. Someting like that.
27 November 2020, 07:06
Doug W
quote:
Originally posted by dpcd:
Supposedly FN started the H ring in 1948; all the FN commercial actions I have here are H. I have an FN 1950 military action here somewhere and when I find it I will report what it is. The last FN military rifle was made in 1964 and I can't imagine they were using a C ring when the H had to be cheaper to make.


and

quote:
Originally posted by theback40:
I have an FN that was a 30-06 mil. It has an Imperial crown over an L over ABL and 1951.
It's an H ring. Very nicely made, it has a 35 whelen Imp barrel on it now .... need to finally finish that rifle!


See, I did not know they ever made military versions with the H ring.
Or when they ended military production.
Thanks!
27 November 2020, 17:46
theback40
It has a little notch in the front ring, and a 3.4" mag box to fit 30-06 ammo.
27 November 2020, 21:47
hogfarmer
Anecdotal at best; I have a commercial FN stamped 1950 in a cartouche below the front ring that is a C ring. It was imported by Firearms International and has the FI insignia across the front ring.


"For they have sown the wind, and they shall reap the whirlwind..."
Hosea 8:7
28 November 2020, 00:50
jeffeosso
quote:
uncompleted FN commercial receivers from Sarco


i have a sim memory of these NOT being heat treated - i could be wrong.


the H torque face receiver is easier to machine than the C torque face receiver , something about easier/faster to machine the inside bolt rail.. again, from memory, i could be wrong


#dumptrump

opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
28 November 2020, 02:13
Doug W
quote:
Originally posted by jeffeosso:
quote:
uncompleted FN commercial receivers from Sarco


i have a sim memory of these NOT being heat treated - i could be wrong.


the H torque face receiver is easier to machine than the C torque face receiver , something about easier/faster to machine the inside bolt rail.. again, from memory, i could be wrong


Correct not heat treated and requiring minor machining and lots of finishing.

The H can be cut with broaches, the C requires the left blind lugway to be shaved with a single point tool going back and forth a billion times.
28 November 2020, 02:28
dpcd
That machine is a shaper.
I did find m 1950 FN ABL action; H cut.
That FI action must/might have been the last C cut.
28 November 2020, 05:22
Bobster
If you are wanting to create a FN style bolt this might make a good handle donor:

https://www.sarcoinc.com/fn-mauser-belgian-bolts/

It also suggests FN was making up the bolts from at least two parts. Not a one-piece forging.
28 November 2020, 05:42
dpcd
Those are .715 OD and do not have guide ribs; not sure what they were for. I buy them by the dozen for the handles.
28 November 2020, 06:15
vangulik
In the early 1960's, I visited a surplus arms importer warehouse, I can't remember which one, in New York City. There was at least one case of unissued FN Dutch Police Carbines with 18 inch barrels in 8x57 JS. Asking price was $60. Finish was blued. Some crests were J for Queen Juliana. Others were W for Queen Wilhelmina.

Those were the days.
28 November 2020, 08:06
Doug W
quote:
Originally posted by Bobster:
If you are wanting to create a FN style bolt this might make a good handle donor:

https://www.sarcoinc.com/fn-mauser-belgian-bolts/

It also suggests FN was making up the bolts from at least two parts. Not a one-piece forging.


Doubtful they would have made a entire oddball bolt just to cut the handle off and weld it on a 98.

But I bought a few and they did make a cool coat rack.
28 November 2020, 19:36
dpcd
Or course not; they were for some other rifle; not a 98.
28 November 2020, 23:27
Doug W
OK we covered the bolt.

Any info to support the claim that later FN commercial and military mausers were made from 4140 or some other alloy instead of low/med carbon steel and case hardened?
29 November 2020, 07:26
Doug W
quote:
Originally posted by vangulik:
In the early 1960's, I visited a surplus arms importer warehouse, I can't remember which one, in New York City. There was at least one case of unissued FN Dutch Police Carbines with 18 inch barrels in 8x57 JS. Asking price was $60. Finish was blued. Some crests were J for Queen Juliana. Others were W for Queen Wilhelmina.

Those were the days.


Since you are tormenting us with prices from the past. Smiler






29 November 2020, 08:26
Fal Grunt
Wow, I’ll take a dozen.

They were low carbon steel, not 4140.


Nathaniel Myers
Myers Arms LLC
nathaniel@myersarms.com
www.myersarms.com
Follow us on Instagram and YouTube

I buy Mauser actions, parts, micrometers, tools, calipers, etc. Specifically looking for pre-WWII Mauser tools.
29 November 2020, 08:56
georgeld
Polish 'em up, they'll make!

I have a FN Mauser made in Leige.
.375 H&H, was Dad's. Uncle was stationed
there and shipped it home for Dad I think in '62 as he retired in 'fall of '63 and the folks drove
to AK, uncle flew up and they hunted moose.

It's handy if you want to know the markings I
don't have a way to send pics unless by txt to
dpcd.
Nice looking rifle, blued too.

George


"Gun Control is NOT about Guns'
"It's about Control!!"
Join the NRA today!"

LM: NRA, DAV,

George L. Dwight
29 November 2020, 21:40
Doug W
quote:
Originally posted by Fal Grunt:
They were low carbon steel, not 4140.


What do you mean by 'they'?

Those unfinished FN receivers I have pictured? Yes they are.

All FN produced mausers?

Because I asked up the thread,
"Any info to support the claim that later FN commercial and military mausers were made from 4140 or some other alloy instead of low/med carbon steel and case hardened?"

So I am unclear about your reply.

thanks Doug
29 November 2020, 21:46
Doug W
quote:
Originally posted by georgeld:
Polish 'em up, they'll make!


I am thinking about shortening at least one, maybe all.

Without all that excess carbon from being case hardened they should be easier to weld hopefully without those nasty carbon inclusions that like to form.
29 November 2020, 23:47
458Win
I have acquired a small stash of FN auctioned rifles sold by Sears and Montgomery Wards and only have one with the C ring and it's dated 1948.


Anyone who claims the 30-06 is ineffective has either not tried one, or is unwittingly commenting on their own marksmanship
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NRA Benefactor www.grizzlyskinsofalaska.com
30 November 2020, 00:35
Duane Wiebe (CG&R)
Those bolt bodies offered by Sarco look like the push feed bolts Browning changed to in about 1967. The bolt head was secured by a cross pin, and had a plunger ejector and extractor in the bolt head.

Talk abut a giant leap backward!

The FN bolt handle is (in my opinion) butt ugly and I replaced many...always found a void in the weld
01 December 2020, 21:09
Fal Grunt
quote:
Originally posted by Doug W:
quote:
Originally posted by Fal Grunt:
They were low carbon steel, not 4140.



"later FN commercial and military mausers"

thanks Doug


That is not to say that they are not... but I have never seen documentation that implies or explicitly states that they are. All documentation and references I have seen point to low carbon. I am sure over the years the alloy changed...


Nathaniel Myers
Myers Arms LLC
nathaniel@myersarms.com
www.myersarms.com
Follow us on Instagram and YouTube

I buy Mauser actions, parts, micrometers, tools, calipers, etc. Specifically looking for pre-WWII Mauser tools.