There are alot of SMART people here. And for thank each and every one of you for your sharing knowledge.
My question is this. Has anyone figured out why such a variance riddled rig like a Savage 110 action rifle assembly shoots very decent from the box?
Workmanship where it counts. Basic design.
Variances appear to be riddled in the right direction. Barrel to receiver would seem to be the most important. Whatta Hobby!
Semper Fi
Sgt USMC 66-72
Floating bolt head......
Keeping my bad Karma intact since 1952
I dug a tad Fuj still trying to figure out how that floated bolt head increases accuracy. Im probably overthinking it and the answer is obvious as hell.Originally Posted by Fuj'
Anyway here is what Fred wrote in 2013.
The floating bolt head insures that both lugs make contact on the lug abutments. Compared to other rifles that use a solid bolt(Remington,Winchester, Ruger, etc.) the top lug usually has little contact with the lug abutments because the trigger forces the bolt upward at the rear.
The savage bolt on the other hand, engages the cocking piece pin and the sear from the side. The "float" in the bolt head at the cross pin joint allows the bolt head to swivel enough that both lugs make contact no matter how much the back of the bolt is shifted to one side or another. The deflection at the rear of the bolt could be as much as .040" in any direction, and still get full contact on both lugs.
The receiver threads and the lug abutments are machined in the same fixture, and will always be square to one another, but may not be square to the receiver face, especially on the older models. All of the new models that have been machined on the new Okuma machining centers will have the receiver face square with the threads, although it is a milling operation, not a turning cut.
LDS, that's good info! This goes back to another thread of recent about a comment I made about blueprinting of your action, if Savage is truly doing this process of making everything strait and squared where it needs to be? then getting close to a blue printed action from the factory is a major plus! I have a custom build going on as we speak, I used an old model 12FLV action that was a .223rem to begin with, I opted to have it built in 308win, instead of the 6.5 Creedmoor I was planning to build, I noticed when I disassembled the action on the M12 had no scuffing where the bolt lugs contacted the receiver, the bluing was basically untouched, and I shot this rifle about 1400 rounds, which Leeds me to believe I wasn't getting good contact? even tho my accuracy was 1.5'' at 200m with hand loads, not great IMO, but this M12 action will be blueprinted for this build, now back to the 110 newer SA, the 6.5 Creedmoor barrel I was going to use on the M12 is going to be used on a newer 110 SA, I had planned to build the rifle myself, only reason I didn't build the other 1 is I cannot MELONITE the action or other parts like the barrel, which is why I have it done by my friends, who will also be MELONTING my 6.5 barrel, so I hope your info is correct? if so It will make me happy and my 110 build should be a good 1!
So if the floating bolt head corrected all of those issues, why then, since they are now corrected in better fixtures and CNC machinery, does the floating bolthead fix things that no longer exist. Savages are still accurate. They still straighten barrels the same way. Many of which shoot well despite the bore finish.
The Bighorn actions use what they call a floating bolt head but do not have the generous clearances to accommodate the major angular alignment issues. It comes out to be more of an interchangeable bolt head more than anything.
I do agree that lug abutment contact is crucial for accuracy. I also agree with a lot of things happening with the trigger sear and the bolt. These things light my candle at night when thing get dark. I cant answer much but i can ask questions and ponder some of those points.
The Dunning-Kruger effect is alive and well.
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