Gunsmithing 10fp .308 problems

dunes450r

Private
Minuteman
Mar 27, 2011
84
0
35
NW Oregon
so, i have a savage 10 fp, bought it a while ago to create my version of a long range gun, plus have a good solid rifle. bought a new bolt handle, had it threaded, plus an aftermarket recoil lug added. bedded it into a B&C stock, got a weaver 20 moa rail, and then bought a vortex pst ffp 6-24 off that got mounted in some warne tactical steel 30mm rings. all teh components that i thought would equal a good long range gun for me to learn and improve my shooting on.

the problem: the first time i tried to sight the gun in it seemed to "pattern" (we're talking 6-8" at 100 yds) with 168 gr SMK's that were moa in another .308, plus the windage knob of the scope was bottomed out in one direction. i scratched my head and cussed a bit. went home took it apart to find that the aftermarket recoil lug sat higher than the reciever, and the scope base was not fully seating on the action, plus with some shiny spots on the lug, and base you could tell the parts were moving around.

fast forward to yesterday: after machining the front of the rail to clear the lug (very little material had to be removed) i bedded the rail using a skim coat of devcon. went to the range to try and get it sighted in to do some load workup. now the windage knob is still bottomed out in one direction, and the elevation knob is bottomed out in the down position (and its still hitting 12-16" high at 100yds. now i know that a 20 moa rail moves the POI up in relation to POA, but i thought generally a scope, especially one with a 30mm tube would have enough travel to still zero at 100? i mounted the vortex to my bolt action .223 and it is fine. zeroed it in just a few shots, tracks fine and still have plenty of adjustment in all 4 directions when at zero.

so that leaves me with: the gun is messed up, or the base is Fed. took everything back apart, scraped the devcon off the action and after inspecting i found that the top of the action isn't straight, i can't imagine this being normal, but i also don't think its the only source of my problems.


i'm going to put a standard base on the gun, and see what that does for my issues, then hopefully i'll have a better idea if the gun, base or both are at fault

thanks for reading my book and for any help/input

the straight edges in the pics are touching at the front and rear of the action. one is ground aluminum plate, the other is a pair of SPI calipers FYI, both are easily straight within a few thousandths

CIMG2071.jpg


CIMG2069.jpg


CIMG2067.jpg
 
Re: 10fp .308 problems

I would call Savage asap. That looks like a QC issue that slipped through the factory and should have be caught. Would also call where you bought it from to see if they can do anything for you.
 
Re: 10fp .308 problems

Bed the scope base. Try this first. We do it on benchrest rifles and it levels and stablises the bases.
Remove all bedding material from the stock and start fresh.
If the original is amiss putting more on it will compound te problem.
 
Re: 10fp .308 problems

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Thud</div><div class="ubbcode-body">Bed the scope base. Try this first. We do it on benchrest rifles and it levels and stablises the bases.
Remove all bedding material from the stock and start fresh.
If the original is amiss putting more on it will compound te problem.
</div></div>

Strongly disagree.

If the action is an old one you had laying around, this would be an option. I'm sure the rifle will shoot ok, but that action is just wrong. Have the manufacturer make it right, rather than employing a "work-around".
 
Re: 10fp .308 problems

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: turbo54</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Thud</div><div class="ubbcode-body">Bed the scope base. Try this first. We do it on benchrest rifles and it levels and stablises the bases.
Remove all bedding material from the stock and start fresh.
If the original is amiss putting more on it will compound te problem.
</div></div>

Strongly disagree.

If the action is an old one you had laying around, this would be an option. I'm sure the rifle will shoot ok, but that action is just wrong. Have the manufacturer make it right, rather than employing a "work-around". </div></div>

I completely argree. This is a manufacturing screw up. If you buy a new car and find there is a dent that you didn't see, you don't throw some bond in it, you take it make to the dealership to have them fix it.
 
Re: 10fp .308 problems

I'd definitely be calling savage or the dealer if it was new. If its a used gun, well then you probably don't have much recourse there. There an obvious problem with the action. Yeah you can bed a rail to the action and try to eliminate that side of the problem, but if the action isn't straight then it prolly won't help anything unless you do some math/measuring to off set the high/low possibility from front to back. Hopefully savage will make it right, as they should if its new.
 
Re: 10fp .308 problems

Need a top view.
I would imagine the scope base holes are misaligned and deflecting slightly to one side also.
This curve is for certain not something that was done when you put the new recoil lug on? You vised the barrel not the action correct? I only ask because improper vice use would bend/twist/warp a savage action quite easily.
You could toss the factory lug back on to confirm you don't have an alignment issue there also.
I would try the factory lug, then send it back to savage if new. It may very well need a new receiver.
 
Re: 10fp .308 problems

Unfortunately this wouldn't be the first time it happened on a Savage; the Model 16 was notorious for this a couple years ago.

Call Savage and I'm certain they'll make it right.
 
Re: 10fp .308 problems

Loosen the bolts that hold the action into the stock, then put the level on it.

Looks like your recoil lug is longer/taller than the previous and is bending the receiver when you torque the bolts.

Is this in a B&C Duramaxx stock? I have one and the action sits so crooked in it it's unbelieveable. Not only does it sit twisted in the bedding area, the barrel also hits along the entire right side of the stock. I will shoot it that way before I send it to B&C for replacement