Sako question

D

Dog's Elvis

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When re-barreling a Sako Riihimaki, the L46, should there be a relief cut at the breach end of the barrel to allow clearance for the extractor?
 
I usually grind the tip of the extractor slightly and fit the barrel close to that with about 2 thou clearance and leave the end of the barrel just faced flat.
 
I usually grind the tip of the extractor slightly and fit the barrel close to that with about 2 thou clearance and leave the end of the barrel just faced flat.

Dennis, how much clearance does that leave you with between the bolt nose and the barrel? I would think it would have to be a signifcant amount. I'm not doubting you but I am fixing to do one myself and plan to cut the extractor relief in a mill with a beveled end mill to leave all the support that I can for the case. Needless to say, that ain't gonna be fun. How much unsupported case is acceptable in your opinion? Am I missing something here:confused:? I appreciate your input. Thanks---Mike Ezell
 
Sako L-46

Had a Sako L-46 ( serial # 336xx) re-barreled several yrs ago. The gunsmith duplicated the relief cut on the face of the barrel, identical to the original barrel. No problem, no xtra charge. Very recently had another Sako L-46 ( serial 488xx) re-barreled and that gunsmith make a circular cut around the whole circumference of the chamber opening. he explained to me that he did not have the tool/cutter to make the Sako extractor relief cut, and found the circular cut to work fine. Went back twice, for extractor work; first time, the extractor would sometime leave an empty, fired case in the chamber, easily pushed out w/ cleaning rod. "Modification" to the face of the extractor solved that problem. Then it went back again: extremely hard bolt closing on a loaded round, ( even a factory round). More "modification" & all is well now. Spoke to another 'smith ( 40 yrs experience), and he told me he would have to make a special cutting tool to duplicate the Sako cut, and there would have to be a hefty charge. First 'smith must have already had the cutter?
 
Had a Sako L-46 ( serial # 336xx) re-barreled several yrs ago. The gunsmith duplicated the relief cut on the face of the barrel, identical to the original barrel. No problem, no xtra charge. Very recently had another Sako L-46 ( serial 488xx) re-barreled and that gunsmith make a circular cut around the whole circumference of the chamber opening. he explained to me that he did not have the tool/cutter to make the Sako extractor relief cut, and found the circular cut to work fine. Went back twice, for extractor work; first time, the extractor would sometime leave an empty, fired case in the chamber, easily pushed out w/ cleaning rod. "Modification" to the face of the extractor solved that problem. Then it went back again: extremely hard bolt closing on a loaded round, ( even a factory round). More "modification" & all is well now. Spoke to another 'smith ( 40 yrs experience), and he told me he would have to make a special cutting tool to duplicate the Sako cut, and there would have to be a hefty charge. First 'smith must have already had the cutter?

Thank you f d!
I didn't mention it it my previous post but that also was a consideration of mine...proper operation of the extractor I mean.This is my first sako with the extractor cut to rebarrel and just want to do it the way it should be done. I'll yield to those of you who are much more knowledgable of this than myself and appreciate the advice.---Mike Ezell
 
Dennis, how much clearance does that leave you with between the bolt nose and the barrel? I would think it would have to be a signifcant amount. I'm not doubting you but I am fixing to do one myself and plan to cut the extractor relief in a mill with a beveled end mill to leave all the support that I can for the case. Needless to say, that ain't gonna be fun. How much unsupported case is acceptable in your opinion? Am I missing something here:confused:? I appreciate your input. Thanks---Mike Ezell

The cartridge case is in the barrel right up to the extractor groove behind the web. I have barreled probably a hundred or more old Sako's in the 3 sizes of actions... 222's, 308's, 06's and Magnums... none of them had any special cuts or fitting of the extractor and never had any problems... I have not seen a factory Sako barrel any different either.

I just checked a 6mm Rem barrel off an old Sako.. the shell sticks out of the chamber .150".... there is no problem at all with that...
 
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