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Drilled scope mount hole too deep
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While attempting to mount a WWG Scout mount on a Marlin 45/70 I drilled a mount hole too deep. I've calculated that .046" of metal remains between the bore and the bottom of the hole. I was aiming for a minimum of .090". Its a #6 size screw located 2.5" ahead of the chamber.

Is there a way to fix this or do I need a new barrel?
 
Posts: 9 | Registered: 20 November 2003Reply With Quote
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at .046 you should be fine.

I made a similar error last week and drilled a rear sight hole all the way into the bore of a .416 Ruger barrel.......and if course it is now aiding tomatoes to grow!


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Posts: 28849 | Location: western Nebraska | Registered: 27 May 2003Reply With Quote
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A pro would have gone all the way through. He knows that by drilling into the bore, he won't waste the whole weekend worrying about whether there is enough material or not. Big Grin

I don't like to get that close but it'll probably be okay. Is it a flat bottomed hole? Maybe you'll luck out and one of the lands will pass under it giving you another .004. Big Grin Make sure that the screw for that hole is a good fit and doesn't bottom out. Keep your eyes open for distorted reflextions in the bore that would indicate potential trouble. Wear shooting glasses and good luck!


_______________________________________________________________________________
This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life.
 
Posts: 3171 | Location: SLC, Utah | Registered: 23 February 2007Reply With Quote
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A few years back I took the factory rear sight off a name brand rifle before mounting a large objective scope. Underneath the rear sight base was a bit of powder fouling which had me perplexed…until I noticed the tips of the sight base holes extended into the bore.
Confused
The owner of this particular rifle claimed it had shot quite well since day one Big Grin


Steve Rose
----------
Rose Action Sports, LLC
www.roseactionsports.com
 
Posts: 189 | Location: Western Kentucky | Registered: 02 November 2007Reply With Quote
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Anyone looking for a .404 Jeff barrel with integral gas vent? I've kept it in the shop for a few years now to remind me to go slower than I want to.

S_ _ t happens!

In your case I don't think you'll have a problem.


John Farner

If you haven't, please join the NRA!
 
Posts: 2949 | Location: Corrales, NM, USA | Registered: 07 February 2001Reply With Quote
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I might buy that .404 barrel from you. Then i could make a matched pair of rifles. I already have a .30-06 barrel with quarter rib, barrel band sling swivel, barrel band front sight, and a hole clean through to the bore!
 
Posts: 2509 | Location: Kisatchie National Forest, LA | Registered: 20 October 2004Reply With Quote
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It is rather refreshing to learn that I am not the only one to Phuque up.

Thanks to all

Jim


Jim Kobe
10841 Oxborough Ave So
Bloomington MN 55437
952.884.6031
Professional member American Custom Gunmakers Guild

 
Posts: 5534 | Location: Minnesota | Registered: 10 July 2002Reply With Quote
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Thanks to all. I appreciate the candor and good advice.
 
Posts: 9 | Registered: 20 November 2003Reply With Quote
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all you has to do is to sew dat hole up like you did when you sewd up a cracked engine block in da ole dayz. Big Grin



Doug Humbarger
NRA Life member
Tonkin Gulf Yacht Club 72'73.
Yankee Station

Try to look unimportant. Your enemy might be low on ammo.
 
Posts: 8351 | Location: Jennings Louisiana, Arkansas by way of Alabama by way of South Carloina by way of County Antrim Irland by way of Lanarkshire Scotland. | Registered: 02 November 2001Reply With Quote
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Picture of Rusty Marlin
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quote:
Originally posted by Marc_Stokeld:
I might buy that .404 barrel from you. Then i could make a matched pair of rifles. I already have a .30-06 barrel with quarter rib, barrel band sling swivel, barrel band front sight, and a hole clean through to the bore!


Oh my good gracious! Have you found all the pieces of your broken heart yet?


Rusty's Action Works
Montross VA.
Action work for Cowboy Shooters &
Manufacturer of Stylized Rigby rifle sights. http://i61.photobucket.com/alb.../th_isofrontleft.jpg
 
Posts: 863 | Location: Northern Neck Va | Registered: 14 December 2005Reply With Quote
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My boss brought his brother's TC Hawken barrel into the shop about 25 years ago to have one of the tool makers drill and tap it for a Weaver rail.
After he got it together I took some 6-32 set screws and nuts and attached them to the bottom barrel flat with Eastman 910 (Super Glue). They were placed to look like the Weaver rail had been bolted to the barrel with all 4 screws going through the barrel.
Needless to say his brother was pissed when he got the barrel back. We never go the honor of working on his rifles again.
 
Posts: 9207 | Registered: 22 November 2002Reply With Quote
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just for the hell of it, what do you say to a customer in a situation like this?
 
Posts: 3314 | Location: NYC | Registered: 18 April 2005Reply With Quote
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well you could always fill it up with JB weld, thats how westpac fixes um Cool


in times when one needs a rifle, he tends to need it very badly.....PHC
 
Posts: 1755 | Location: slc Ut | Registered: 22 December 2002Reply With Quote
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Picture of Westpac
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quote:
Originally posted by tin can:
just for the hell of it, what do you say to a customer in a situation like this?


Wouldn't be a whole lot to say. You might try the truth like, "Ya know, I think that this gun of yours would perform a whole lot better with a new barrel. How would you like to test drive a new barrel for free? The only catch is that you document the load data and performance. May I keep the old barrel, I would like to test some new porting theories and this here barrel or yours would be just the ticket." Big Grin


_______________________________________________________________________________
This is my rifle, there are many like it but this one is mine. My rifle is my best friend, it is my life.
 
Posts: 3171 | Location: SLC, Utah | Registered: 23 February 2007Reply With Quote
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Westpac is right.

You call brownells order the guy a new bbl and install it for free.

You are most likely out around $200 in cash and your time.

It could be a lot worse. I think srewing up a nice wood stock would be more problematic.


Mike

Legistine actu quod scripsi?

Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.




What I have learned on AR, since 2001:
1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken.
2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps.
3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges.
4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down.
5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine.
6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle.
7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions.
8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA.
9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not.
10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact.
11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores.
12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence.
13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances.
 
Posts: 10181 | Location: Loving retirement in Boise, ID | Registered: 16 December 2003Reply With Quote
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I will not put in print what I said that after I drilled a hole through the barrel. Especially since it was for a second (unecessary) hold down screw under the rear sight in the quarter rib.

All I could do was order another barrel, front sight, and sling swivel and start all over.

Funny thing is, the only other barrel I had to scrap was 4 years earlier and for the same guy! He is a stockmaker and past president of the Guild.

FWIW-you can stick a screw in the hole and shoot it until the rfiling is burned out if it is your own barrel.
 
Posts: 2509 | Location: Kisatchie National Forest, LA | Registered: 20 October 2004Reply With Quote
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quote:
Originally posted by Westpac:
A pro would have gone all the way through. He knows that by drilling into the bore, he won't waste the whole weekend worrying about whether there is enough material or not. Big Grin



I drilled all the way into the chamber, once, 10 years ago on a $50 1938 Turk, and it still bothers me.



direwolf,
Don't worry, I drilled all the way through, and only the really hot ammo will blow a hole in the brass up a 6-48 hole.
The wimpy surplus shoots just fine.
I can see a tiny bump in the brass where the hole did not support it.
 
Posts: 9043 | Location: on the rock | Registered: 16 July 2005Reply With Quote
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thanks for the responsesSmiler

I've been in similar situations not gun related, I'd describe them as "high pucker factor".

when staring intensely at the damage doesn't make it go away, me being me, my first thought is to lie MAO.

Big Grin
 
Posts: 3314 | Location: NYC | Registered: 18 April 2005Reply With Quote
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I feel alot better now thanks to all of you.
 
Posts: 9 | Registered: 20 November 2003Reply With Quote
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