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Title: The $50 Stevens (Savage) M84C 22 LR bolt gun
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Buckshot2
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Rank:none
Score: 2726
Posts: 2726
Registered: 08/31/2003
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(Date Posted:03/26/2004 11:29:57)

..........I'd posted about shooting this rifle a few weeks ago and it's results warrented so tinkering. First off I am not trying to make it a BR50 gun or anything. Yet for $50 I could take some liberties with it and not feel bad about any little oopsies along the way. I finally got around to pulling the barreled action to do some work to it. The way it was you had considerable creep and then a trigger that DID break clean, but at the cost of causing your index finger knuckles to crack and pop with the effort. Once it finally broke, there was twice the overtravel as there was takeup. Also, as is common to 22's, the barreled action was held in the stock by one screw. This screw whicle being fairly substantial is afterall, only one screw. It threads into a cylinder that is dovetailed into the bottom of the barrel about 1" ahead of the action. Again, fairly common in RF's. The action area of the stock is completely routed out so the tubular action is unsupported underneath and bears on wood only at the extreme rear for about 1/4". I know this is kind of hard to follow and I do plan on posting some before and after photos. I plan on leaving the existing screw in place and to add another. There really is only one accessable spot for it on the underside of the action. Starting at the front you have the magazine housing, a 1/2" area where the sear spring rides, then the sear pivit and sear which extends rearward, the trigger arm which comes forward to it, and then the rear of the action. I think I'll remove the sear pivit housing and make another which will extend down to touch the bottom of the inletting and will have a screw come up through the stock and thread into it. It's about 3/8" in diameter and split with the sear riding in the split and a pin going through it and the split housing. It's threaded into the underside of the action. I figure to make a new one that's 1/2" in diameter and that will thread into the action in the same spot. It'll have a slot in it but be solid on the bottom. This will be D&T'd to accept the 2nd action screw. Since it's almost in the center of the action's length, it'll supply more rigidity to it. I disassembled the bolt as far as I could. The rear rotating section contains the striker assembly and it has a substanial spring to power it. It's captured in the front by a machined shoulder and at the rear by a "C" shaped clip with inward facing ears on each of the "C"s arms. Kind of like an "E" clip but only of 180 degrees. Each of these 2 ears go through the bolt wall and fit into little notches at the rear of the mainspring housing. I do not believe it was intended to be taken apart without breaking this "C" clip. I worked for sometime trying to get the "C" clip out, but it just wasn't happening. I had planned on removing a full coil off the mainspring. Oh well. The main reason for wanting to do this was bolt lift effort. Due to the angle of the milled incline the cocking piece has to climb when the bolt handle is operated, it required consience effort on your part. You could also see the barreled action flexing in the stock from the effort. I may still try and modify the spring. I might have to break the "C" clip, but can D&T a couple 4-40 holes to accept setscrews to retain the mainspring housing. We'll see. All in all, even though this was not an expensive rifle when new, there is nothing cheap about it. All the parts are blued and machined steel. There is no plastic where plastic is accepted these days, and the dual extractors are milled and not stamped sheet metal. Plus they're powered by real coil springs! There is even a sear engagement screw! I contented myself with polishing & stoning all the trigger contact surfaces and will add an overtravel adjustment screw to it. As well as this rifle shot the way I got it, I'm excited to see what these additional bedding and trigger mods make. Lots of fun with an old $50 22! ..............Buckshot

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Father Grand Caster watches over you my brother. Go now and pour yourself a hot one. May the Sacred Silver Stream be with you always

Proud former Shooters.Com Cast Bullet alumnus and plank owner

Buckshot2
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Rank:none
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Posts:2726
Registered:08/31/2003
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(Date Posted:04/01/2004 11:20:23)



Here's the subject rifle. A 'Just for fun' type project to see what improvement to it's accuracy I could make without a major or expensive hassle. It's a clip feeder.



I've marked the factory screw attachment, and the one I added. In my previous post I'd mentioned I thought I'd make a new sear pivit point housing and use it as the 2nd (rear) attaching screw point. After looking at this further, I decided to go with using the rear mag housing screw. One reason is that at this position, when the hole is drilled all the way through, it will come through the magazine plate on the underside of the stock as in the photo below.

I thought this would be better then the other position, which would be further to the rear (actually more desireable as there would be more length between the two) but would bear against the wood of the stock. The screws attaching the magazine housing are threaded 1/4-30. An odd size and a pitch missing from the lathes QC gearbox. I tried a 1/4-28 bolt and it threaded in almost the thickness of the action, so I used that.

I made the new piece using some 3/4" drill rod, which I turned a .600" length down to .380" diameter to fit between the sides of the mag housing. I then drilled it through, and tapped it 1/4-28 from either end leaving a section in the center unthreaded. I did this to allow the stud to 'jam' and with some red Loctite it should stay.

The sides of the full 3/4" diameter piece was milled flat on either side to .650" wide to just clear the inletting. The piece was screwed in. I'd made a short transfer type punch and screwed it in the new piece then assembled the bbl'd action back into the stock so the punch would mark where to drill the new hole. As luck would have it, in my gun 'stuff' box I happened to have a large headed slotted screw threaded 1/4-28 that looks right at home.



[size=4][/size] This shows the original and the new action screws in place. Looks pretty 'factory' to me! [size=4]



[size=4]The barreled action out and lying next to the stock. As you can see, due to the trigger & sear arrangement, there isn't a whole lot of choices as to where you could put a rear action screw. You can also see that the stock is pretty well hollow under the action.

The very last 1/8" of the action does sit on a tiny ledge at the rear. I had also thought of welding a pad extention on the rear of the action for a screw instead of what I ended up with, but figured it'd be just too much messing around. I may take a piece of 1/4-20 allthread and inlet it into the very rear of the stock inletting to allow the action to set on it, but first I want to shoot it with these improvements to see what happens.

Earlier this evening I bedded the 2" of the barrel ahead of the action after skivving out the barrel channel to float the barrel, and the new rear action screw foot was bedded in also. It'll be fun to see if this was all just fooling around, or if it will actually make an improvement. Oh yeah, I added an overtravel stop to the trigger and adjusted the sear engagement. It has a better trigger then my 582 Remington 22RF trigger now

...........Buckshot [/size]

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Father Grand Caster watches over you my brother. Go now and pour yourself a hot one. May the Sacred Silver Stream be with you always

Proud former Shooters.Com Cast Bullet alumnus and plank owner

floodgate1
2# 



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Score:285
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Registered:08/30/2003
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(Date Posted:04/01/2004 18:19:03)

Buckshot:  Nice work.  And that was before the lathe, too!  I have run into that odd 30-tpi pitch before.  Ideal was enamoured of it and used 5/8" x 30 tpi for their tong tool dies (11/16" x 30 tpi for the 310 dies in .348 and .50-70), and I ran into it again at 1/4" x 30 tpi in one of the little "sight micrometer" tools they made for resetting '03 Springfield sights.  Dern nuisance!  floodgate
starmetal
3# 



Registered:09/21/2003
Time spent: 0 hours


(Date Posted:04/01/2004 23:46:29)

Buckeroo

All I want to know is can we put a 45-70 barrel on it or is the 22 bolt face too small?

Joe

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VENIT HORA "THE HOUR HAS COME"

Buckshot2
4# 



Rank:none
Score:2726
Posts:2726
Registered:08/31/2003
Time spent: 0 hours


(Date Posted:04/07/2004 09:41:13)

..........I shot the rifle Tuesday and I can't say that it was worlds better, but the trigger sure was. I hauled 11 different kinds of 22RF ammo to the range and of them, 2 really stood out. One I was tickled about as my Martini and Rem 582 both love it, and that's Winchester Dynapoints. The other was Federal Classic.

None of the actual target type standard velocity ammo did well at all. Friend Ron kind of summed it up by saying that it wasn't designed as, nor sold as a target rifle. But rather its a plinker. All the groups were fired after firing 5 rounds away to condition the barrel between brands, and then a 10 round group was shot at 50 yards.

The Dyanpoints produced an 8 round group of .83" with 2 just out for almost an exact inch. The Federals put most of it's 10 rounds into about .65", with a couple at .78" and one for a 10 total of .92". We did have some breezyness but since it was mostly from 6 o'clock I'm not going to claim any fouls because of it.

At home I cleaned the rifle and there was no leading, and after almost 300 rounds it was surprisingly clean. All in all it is what it is. A fairly inexpensive (when new) capable 22RF bolt action. The scope (one of those little 1/2 jobs) is the pits, BTW!

............Buckshot

--------------------------------------------------------------
Father Grand Caster watches over you my brother. Go now and pour yourself a hot one. May the Sacred Silver Stream be with you always

Proud former Shooters.Com Cast Bullet alumnus and plank owner

starmetal
5# 



Registered:09/21/2003
Time spent: 0 hours


(Date Posted:04/07/2004 17:45:53)

Reply to : Buckshot2

..........I shot the rifle Tuesday and I can't say that it was worlds better, but the trigger sure was. I hauled 11 different kinds of 22RF ammo to the range and of them, 2 really stood out. One I was tickled about as my Martini and Rem 582 both love it, and that's Winchester Dynapoints. The other was Federal Classic.None of the actual target type standard velocity ammo did well at all. Friend Ron kind of summed it up by saying that it wasn't designed as, nor sold as a target rifle. But rather its a plinker. All the groups were fired after firing 5 rounds away to condition the barrel between brands, and then a 10 round group was shot at 50 yards.The Dyanpoints produced an 8 round group of .83" with 2 just out for almost an exact inch. The Federals put most of it's 10 rounds into about .65", with a couple at .78" and one for a 10 total of .92". We did

Buckshot

I'm going to give you the thing to do to make this gun shoot better and a light is going to go on in your head, and I know you know this.  As you know from talking to me I think the world of my 541-S Custom Rem Sporter and we know that they are very accurate and we know why, and that reason is two fold.  One it has a semi match chamber in where the bullet slightly engraves the rifling, (which I think is the biggest accuracy improvement), and that it has a really good trigger.  So to you I say remove the barrel and lathe it back a hair (enough to get the bullet to slightly engrave the rifling) and I guarantee you will see an improvement in grouping.  I don't think you will have to mess with a chamber reamer with moving it back a hair.  Then again you could go the whole route and rent a match chamber reamer and move the barrel way back and cut a whole new chamber.

Joe

--------------------------------------------------------------
VENIT HORA "THE HOUR HAS COME"

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