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View Full Version : Remington bolt knob removale. Mill or lathe?



skeetlee
11-09-2015, 10:29 AM
What's your fellas prepared method to replace a remington bolt knob. The mill or the lathe? I am going to make or purchase a jig and the required tooling here pretty quick. Thanks fellas. Lee

Rubicon Prec.
11-09-2015, 10:51 AM
CNC mill and thread milling.

Without that, I'd probably use a fixture in a lathe.

Zebra13
11-09-2015, 11:23 AM
Skeet,

I've done one in my manual mill...time consuming and not fun. Buy or build a fixture for the lathe.

Justin

Dans40X
11-09-2015, 04:11 PM
With out a shoulder for the Louisville Slugger Baseball Bat knob to butt up against the handle will break at the threads.

Adding weight to the handle is the worst option.

Dusty Stevens
11-09-2015, 07:22 PM
I have the ptg fixture for the lathe. Works like a champ. If you just got a few knobs you can borrow mine

Zebra13
11-09-2015, 07:28 PM
Skeet,

Now that I think about it, the smart thing to do would be to send it to Dan and have him Tig weld the bolt handle of your choosing on. Your bolt would be timed correctly, to boot.

Justin

CMaier
11-09-2015, 08:32 PM
Ok dan i gotta ask.
Are you saying hanging a weight(knob) on the threaded
shaft allows the v of the thread to be a "flaw" and split ?
and that with a tension on the thread caused by butting up
against a shoulder,you do not get the failure ??
i know you are a bolt guy but i am lost on this one.

Dusty Stevens
11-10-2015, 12:05 AM
Dan loves threaded bolt knobs, especially when they have a 2lb steel badger bat on the end.

Zebra13
11-10-2015, 01:18 PM
CMaier,

I think he's talking about the flat/shoulder of the bolt handle butting up against the flat of the bolt knob when it is screwed into place. This would add strength to the bolt handle/bolt knob junction vs. a bolt handle with no shoulder for the knob to butt-up to, as if the knob was screwed on to a threaded rod.

Justin

skeetlee
11-10-2015, 01:53 PM
I was just going to go ahead and make or buy a fixture for my shop. This way I can offer this service if someone wants it. I'm not sure I'll change my bolt handle on my personal actions or not? I really like the knob Surgeon used on there srs action they used to make. I haven't seen anyone offering that style yet. I could make it, but it isn't a high priority.
I was just curious as to what machine you fellas like best for this particular tast. Lee

CMaier
11-10-2015, 06:39 PM
you might call EGW.
when they set up to do them, they send out flyers and emails and
do a bunch at one time...i think a lathe setup.

Dusty Stevens
11-10-2015, 08:17 PM
That surgeon knob is huge. Brownells sells em and i bought a dozen a few yrs ago

DSM
11-11-2015, 01:07 AM
I use a jig on a lathe. I have one for Savage handles and one for Remington bolts or others with a fixed handle. I make the knobs fit the tenon for a smooth look. If you need more info, drop me a line here or at chuck at ridgewaybodies dot com. Some samples of mine....

Savage:
http://ridgewaybodies.com/incredible/IMAG2356.jpg
http://ridgewaybodies.com/incredible/IMAG2439.jpg

Remington:
http://ridgewaybodies.com/incredible/picsay-1434145364.jpg.jpg

Dusty Stevens
11-11-2015, 01:53 AM
Hey chuck youre gonna burn your shop down laying those cigarettes on that cardboard

DSM
11-11-2015, 02:18 AM
Hey chuck youre gonna burn your shop down laying those cigarettes on that cardboard

LOL...I'm not sure what that was from. I believe it was from a solder iron at one time. LOL...never puffed on a cigarette in my life!

skeetlee
11-11-2015, 11:55 AM
dusty
the surgeon SRS action was there base round action with no rail or lug. they don't make them anymore. Anyway the knob on that ation was long and sleek. looked great I thought. Ill try and find a pic. Lee


http://i268.photobucket.com/albums/jj38/leebosilvey/22BR004.jpg (http://s268.photobucket.com/user/leebosilvey/media/22BR004.jpg.html)

Dusty Stevens
11-11-2015, 11:59 AM
That second pic chuck posted is the surgeon knob they sell in brownells

DSM
11-11-2015, 09:20 PM
That second pic chuck posted is the surgeon knob they sell in brownells

Dusty...the knobs that I posted were made by myself from a 6061. I machine a bunch of blanks from 3/4" round stock(sometimes 1" depending on what somebody wants) and make a custom know the same time I machine and thread a handle. The back side of all my tenons are tapered about 13 and continue to the knob.

http://www.ridgewaybodies.com/incredible/picsay-1447294693.jpg.jpg

http://www.ridgewaybodies.com/incredible/picsay-1447294745.jpg.jpg

Dusty Stevens
11-11-2015, 10:10 PM
Here go the place to get em

https://surgeonrifles.com/product-category/accessories/bolt-knobs-accessories/

Here go the one i was talkin about

https://surgeonrifles.com/shop/tactical-bolt-knob/

Jay Cutright
11-11-2015, 11:13 PM
I use the lathe and a fixture made for threading handles.
Here's a pic of one I did on a Thompson Icon.

Jay Cutright
11-11-2015, 11:45 PM
I started threading handles for my tactical minded customers and long range hunters were wanting them too.
It seems like they always want a badger ordnance knob but I don't like buying that stuff just to have in stock so I made some.
The one on the left has all the same dimensions as badgers knob except the contour is different, mine has a straight taper instead of the rounded contour like the badger. The one on the right is a scaled down version I'm thinking about making more of maybe even smaller in diameter than the one shown. These are both in Armor black Cerakote ready to install.

Rubicon Prec.
11-12-2015, 07:43 AM
http://img.photobucket.com/albums/v654/300sniper/rifle%20tools/recoillugopeningandchamfering17.jpg (http://smg.photobucket.com/user/300sniper/media/rifle%20tools/recoillugopeningandchamfering17.jpg.html)

http://img.photobucket.com/albums/v654/300sniper/rifle%20tools/recoillugopeningandchamfering19.jpg (http://smg.photobucket.com/user/300sniper/media/rifle%20tools/recoillugopeningandchamfering19.jpg.html)

http://img.photobucket.com/albums/v654/300sniper/rifle%20tools/recoillugopeningandchamfering30.jpg (http://smg.photobucket.com/user/300sniper/media/rifle%20tools/recoillugopeningandchamfering30.jpg.html)

http://img.photobucket.com/albums/v654/300sniper/rifle%20tools/receivertruing7.jpg (http://smg.photobucket.com/user/300sniper/media/rifle%20tools/receivertruing7.jpg.html)

http://img.photobucket.com/albums/v654/300sniper/rifle%20tools/boltknobsdone4.jpg (http://smg.photobucket.com/user/300sniper/media/rifle%20tools/boltknobsdone4.jpg.html)

http://img.photobucket.com/albums/v654/300sniper/rifle%20tools/boltknobsdone1.jpg (http://smg.photobucket.com/user/300sniper/media/rifle%20tools/boltknobsdone1.jpg.html)

Dans40X
11-12-2015, 02:11 PM
Ok dan i gotta ask.
Are you saying hanging a weight(knob) on the threaded
shaft allows the v of the thread to be a "flaw" and split ?
and that with a tension on the thread caused by butting up
against a shoulder,you do not get the failure ??
i know you are a bolt guy but i am lost on this one.
CMaier-
Basically,YES.

The TactiKool crowd crave the Louisville Slugger Baseball Bat Knob option,stating it is easier to manipulate the bolt w/ gloves on-
B.S.-two fingers is all that's required to manipulate a bolt.

Adding length/weight(arm/moment) to the bolt handle will induce more vibration/harmonics into the handles attachment point & silver braze DOES NOT take kindly to vibration &/or harmonics.

DSM-Chuck- has the idea.
Rubicon Prec- Epoxied knobs will not remedy the design flaw.

Dusty-Don't start rumors, as I dislike the option.

I cut off the knob w/ a jewelers slitting saw in mill,pilot a set screw in lathe & attach by TIG welding w/ a shoulder turned & blended.
Delrin was my knob of choice on my XTC rifles.

Rubicon Prec.
11-12-2015, 10:28 PM
CMaier-
Basically,YES.

The TactiKool crowd crave the Louisville Slugger Baseball Bat Knob option,stating it is easier to manipulate the bolt w/ gloves on-
B.S.-two fingers is all that's required to manipulate a bolt.

I know this is not the site for this so I will limit my response to this. While it may only take two fingers to manipulate a bolt, if you are shooting multiple targets fast, you grab the bolt knob like grabbing second gear at 7000 RPM. I am sure there are plenty of fast people using an OEM knob but a larger knob is certainly easier for this type of shooting.


Rubicon Prec- Epoxied knobs will not remedy the design flaw.

I feel my method of moving the stress riser from the root of the thread further from the shoulder is a far better method than any of the other threaded versions I have seen. I have full confidence the handle will break off the bolt body before the handle breaks at the threaded joint.


If by design flaw, you mean the soldered handle to the bolt body, I agree. I prefer monolithic bolt bodies/handles for my personal builds.

I am curious though since I am not an engineer, will a longer, heavier knob really induce more vibration/harmonics? I am sure the heavier weight would slow down the harmonic frequency (if that is such a thing?) but I suppose it could travel further. Either way, I have never personally seen one fail during the firing cycle. I know you attach far more than I ever will so I am sure you have heard every type of failure.

CMaier
11-12-2015, 10:54 PM
you are talking amplitude and frequency.
the heavy knob will reduce frequency,
but increase amplitude( if i recall correctly),
not good.

Dans40X
11-12-2015, 11:18 PM
Rubicon Prec-
Negative-the handle will break before the handle comes off the bolt body.
Not to mention the inclusions & voids in the cast OEM Rem handles-

LOCATE & TIME the bolt handle correctly(w/o SCREWS or PINS) w/a properly TIMED trigger to sear "Hand-Off" & two fingers is sufficient to cycle the bolt.

Process several hundred bolts/handles on a yearly basis for 25+ years & you will be well informed what works & what doesn't.

Zebra13
11-13-2015, 06:19 PM
Gents,

In re: aftermarket bolt knobs, they do have their place on an actual tactical/sniper rifle.

For starters, with some of the "tactical" stocks, they get a bit thick through the bolt handle area, and not a whole lot of bolt is left sticking out to get a grasp on (go look at a Remington PSS). The extended bolt knob gives a bit more bolt to work with. You can still work them with two fingers...you've just increased your margin for error. And on a true tactical rifle, if you are working your bolt, things have gone bad-wrong and you've already sent 1 round down range. And in a stressful situation such as a shootout, we tend to lose our fine motor skills and your chances of getting the bolt cycled and a round in the chamber are better with the longer bolt handle. This loss of motor skills in high-stress situations is why you're seeing a move away from dropping the slide on a semi-auto pistol using the thumb and a slide release during a re-load, to using the support hand to grab the slide, pulling it to the rear, and releasing it.

Note I said extended. I don't see a reason for the knob to be the diameter of a pumpkin.

They can be ugly, yes. But so are tactical rifles. If you put one on a Bob Owen Springfield sporter, you should be burnt at the stake.

I looked at my Panda last night and noted that the bolt handle was fairly long. Certainly longer than the bolt on a 700.

Again, I think the best idea is to send it to Dan and have him weld on a longer bolt handle.

My thoughts from actually having been a long rifle on a SWAT team...and having stayed at a Holiday Inn last night.

Justin

ROCKJAG4
11-24-2015, 06:28 PM
I use the lathe and a fixture made for threading handles.
Here's a pic of one I did on a Thompson Icon.

hey j, that looks like the 1 I made for you.

Jay Cutright
11-24-2015, 06:58 PM
It does look like it. I first saw a muzzle brake bolt knob down in NC on a benchrest rifle, I thought it looked cool. Had some fellar show up at my house one day said he thought about a muzzle brake and gave up the idea but wanted a big bolt knob on his rifle. That's when I ordered a few brakes from you and needed one of them threaded 5/16x24tpi.
I wouldn't mind having one on a rifle but not one as big as the pic. He sure likes it.

Jay Cutright
11-24-2015, 07:02 PM
It made his day when he found out he got a muzzle brake and a knob all for one money.

ROCKJAG4
11-24-2015, 07:07 PM
It does look like it. I first saw a muzzle brake bolt knob down in NC on a benchrest rifle, I thought it looked cool. Had some fellar show up at my house one day said he thought about a muzzle brake and gave up the idea but wanted a big bolt knob on his rifle. That's when I ordered a few brakes from you and needed one of them threaded 5/16x24tpi.
I wouldn't mind having one on a rifle but not one as big as the pic. He sure likes it.

j, I can make any diameter that u would want.

ROCKJAG4
11-24-2015, 07:10 PM
dusty
the surgeon SRS action was there base round action with no rail or lug. they don't make them anymore. Anyway the knob on that ation was long and sleek. looked great I thought. Ill try and find a pic. Lee


http://i268.photobucket.com/albums/jj38/leebosilvey/22BR004.jpg (http://s268.photobucket.com/user/leebosilvey/media/22BR004.jpg.html)

SKEET, I have a ptg gen 2 bolt fixture that I used 2 times. I will sell it to u for $150, if u r still looking for one

ROCKJAG4
11-24-2015, 07:13 PM
cool, looks good