Sako Extractor Works Well in 6mmBR Tubegun
Jonathan Ocab, a High Power shooter from California, had gunsmith Doan Trevor install a Sako-style extractor in the Rem 700 bolt in Ocab’s 6mmBR Eliseo R5 tubegun. Jonathan produced an excellent video showing how the Sako extractor improves the ejection of the short, fat 6mmBR cartridges in his rifle. Jonathan’s video demonstrates 6mmBR case ejection with an unmodified Rem 700 factory bolt versus a factory bolt fitted with a Sako-style extractor.
Johnathan explains: “Note how even when slowly operating the bolt, the bolt with the Sako extractor easily ‘kicks’ out the brass on ejection with minimal chance of operator error resulting in a failure to extract. While the unmodified bolt has issues ejecting brass on slow operation, it will eject if the operator pulls the bolt back quickly (fast and with some force).
While a Sako-style extractor isn’t an absolute necessity, this video shows the definite improvement this modification provides. For short cartridges like the 6mmBR, this is very useful. This modification is highly recommended for competition shooters, especially High Power competitors who seek improved function in rapid-fire stages. This modification is fairly inexpensive and any competent gunsmith should be able to perform the work (usually under $100 with parts and labor).”
EDITOR’s NOTE: In his video, Jonathan deliberately worked the unmodified Remington bolt slowly to show how the standard Rem extractor can struggle with short fat cases like the 6mmBR. In fact, when you work a standard, unmodified bolt more quickly, the extraction can be much more positive. Cycling the bolt with more “snap” provides more energy to eject the cases. We have run an R5 Tubegun chambered in 6mmBR with an unmodified Rem 700 bolt (no SAKO extractor), and the extraction was reliable, provided the bolt was worked quickly.
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Tags: 6mmbr, Rem 700, Remington, SAKO Extractor, Tubegun
The port on the rifle is small and the angle of the Sako extractor (opposite the ejector) aligns the case better during ejection. I would guess the ejector spring has been lightened up also.
Just a note, I didn’t do the modification myself. It was actually done by Doan Trevor (www.doantrevor.com) when he rebarreled the respective action for me.
Just wanted to put that out there since so people don’t think I actually have the knowledge, experience, or equipment to do this kind of work.
I have done this myself to my rem 223 bolt when I did a 6BR barrel swap. worked out very well but when I faced the bolt face to make it larger, The firing pin hole was enlarged and it needed to be bushed. Greg at GRE-Tan did it for me and did a great job.
From the look of the before video, the ejector spring is not stock, and this is the probable source of the problem. ‘Called a friend who has two short action Remingtons chambered in 6BR and asked him if he has any ejection problems, when working the bolt very slowly. He does not. If it can be made for a particular application, the Remington “three rings of steel”breaching system is probably the safest in the industry. ….slick rig…good job on the video
I love the idea of the Sako extractor but the mixed reviews about them make me question the concept.
if you take note of where the Sako extractor is located vs the factory unit you’ll note that the Sako unit is at about 1:30 and the factory unit is at 3:00, during extraction with the factory unit the case mouth is “pulled” into the right bolt lug raceway this expends most of the spring pre-load on the case so when the case mouth clears the loading port there’s very little spring force left to eject the case, the Sako unit “pulls” the case mouth up at about 1:30, above the bolt lug raceway so there’s much more spring pressure loaded in the ejector, it really is the fix for weak ejection with stubby cases like the BR, for longer cases like the .308 it’s not really necissary
Gary Eliseo
I bought a rem 700ti last year in 300wsm and it does this very thing. I looks like in my rifle the brass is still touching the receiver ring when the bolt is at the end of its stroke. It will only eject brass if pulled back very fast and my rifle will not eject rem brass at all(I think the heads on the rem brass are undersized very wierd) would a sako unit fix the problem?
I’ve been considering making this modification in my 6BR for quite a while now. Procrastination is not uncommon for me. This past weekend on the range convinced me that putting up with the poor performance of the factory extractor in my Rem/700 is no longer acceptable. But I’ve decided to go one step further and change out the entire bolt mechanism with a PTG (Pacific Tool and Gauge) bolt and Sako extractor kit. https://shop.pacifictoolandgauge.com/index.php?main_page=product_info&cPath=4_101_103&products_id=172