THE ACCURATERELOADING.COM GUNSMITHING FORUM


Moderators: jeffeosso
Go
New
Find
Notify
Tools
Reply
  
Sako M995 receiver
 Login/Join
 
one of us
Picture of D Humbarger
posted
Rebarreling several Sako M995s I couldn't help notice how thin the receiver ring wall thickness is compared to other actions.

My measurements are with thread depth subtracted.

M98 Mauser .161
Rem. M700 .156
Win M70 .174
Sako M995 top & sides .079 bottom .119

What make the Sako M995 so thin is that the top & sides are ground flat. Not to mention those two dove tail cuts making the receiver even thinner at those two points.

Just seems thin to me especially when this is in the huge 7.21 Lazzeroni firebird cartridge.





Doug Humbarger
NRA Life member
Tonkin Gulf Yacht Club 72'73.
Yankee Station

Try to look unimportant. Your enemy might be low on ammo.
 
Posts: 8351 | Location: Jennings Louisiana, Arkansas by way of Alabama by way of South Carloina by way of County Antrim Irland by way of Lanarkshire Scotland. | Registered: 02 November 2001Reply With Quote
One of Us
Picture of Westpac
posted Hide Post
Makes for a light action. You only need enough material to hold the barrel. You want to see thin, look at a Ruger No 1 barrel tenon chambered for a 378 Wby cased cartridge. Eeker


_______________________________________________________________________________
This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life.
 
Posts: 3171 | Location: SLC, Utah | Registered: 23 February 2007Reply With Quote
One of Us
posted Hide Post
Very interesting- where does this put the "thin" thing in regards to other discussions on this topic concerning other receivers, I wonder.

To wit, has anyone ever seen a small ring Mauser like a '96 blown up, or the small ring '98?

Just askin'.

That Sako does indeed look thin.
 
Posts: 3314 | Location: NYC | Registered: 18 April 2005Reply With Quote
one of us
posted Hide Post
quote:
To wit, has anyone ever seen a small ring Mauser like a '96 blown up, or the small ring '98?

Just askin'.


Yep - I've seen a Swedish Mauser that was REALLY blown up. Big chunks blown out of the receiver ring,extractor gone, magazine etc blown out, side rails broken, stock (plastic) smashed to bits.

Mind you - the reason for the blow-up was a 6.5 X 55 case full of shotgun powder instead of H4831! I don't know WHAT actions might be capable of withstanding that sort of abuse.

I understand that the shooter suffered only very minor injuries, which says a lot for the basic soundness of the Mauser design.
 
Posts: 160 | Location: New Zealand | Registered: 26 July 2002Reply With Quote
one of us
posted Hide Post
The action ring simply holds the barrel in place. It does not serve as a pressure containment vessel. To the extent that it's thinness might result in excessive elasticity, that would come in the fore-aft dimension, not annularly. In other words, the weak point of a thin action ring would be in allowing the barrel and bolt face to separate slightly at peak pressure due to the thin receiver ring stretching. I'm not sure how thin a receiver ring would have to be for this to become a performance problem, but it appears that whatever dimension that is, it is something thinner than that of the TRG-s M995 Sako.

D Humbarger: How do you bed this action, meaning what do you use for a recoil lug? The factory system being simply a dovetail cut in the underside of the action for a corresponding "lump" of synthetic stock material to fit into seems like a weak point, although it seems to work okay with the factory stock. Do you use a Rem 700-type washer?
 
Posts: 13261 | Location: Henly, TX, USA | Registered: 04 April 2001Reply With Quote
one of us
Picture of D Humbarger
posted Hide Post
I suggested useing a remington style recoil lug but the customer wants to stay with the factory recoil lug system.



Doug Humbarger
NRA Life member
Tonkin Gulf Yacht Club 72'73.
Yankee Station

Try to look unimportant. Your enemy might be low on ammo.
 
Posts: 8351 | Location: Jennings Louisiana, Arkansas by way of Alabama by way of South Carloina by way of County Antrim Irland by way of Lanarkshire Scotland. | Registered: 02 November 2001Reply With Quote
one of us
posted Hide Post
I guess that's okay if you stay with the factory stock. If using a custom stock it would seem almost impossible to replicate the bedding "lump" of stock material, but maybe you could mould it with bedding compound or some other kind of epoxy.
 
Posts: 13261 | Location: Henly, TX, USA | Registered: 04 April 2001Reply With Quote
  Powered by Social Strata  
 


Copyright December 1997-2023 Accuratereloading.com


Visit our on-line store for AR Memorabilia