Firearm & Gun Forum - FireArmsTalk.com

Firearm & Gun Forum - FireArmsTalk.com (http://www.firearmstalk.com/forums/)
-   Gunsmithing Forum (http://www.firearmstalk.com/forums/f33/)
-   -   drill and tap a hole in receiver of Winchester SXP defender (http://www.firearmstalk.com/forums/f33/drill-tap-hole-receiver-winchester-sxp-defender-48955/)

kingfisher 09-28-2011 04:34 PM

drill and tap a hole in receiver of Winchester SXP defender
 
1 Attachment(s)
I purchased a tac-star side saddle shell holder for the Winchester 1300. The thru-bolt replacement for the pin in the rear of the receiver fits fine, and the side saddle sits nicely on the receiver. however, the clip at the bottom edge of the side saddle does not fit the edge of the loading port on the SXP. I would like to drill and tap a 3/16" hole into the receiver, possibly 2 of them, to attach the side saddle.

i have attached an image of the locations where i want to put these holes.

the 1st arrow shows the pin that is replaced by a bolt in the standard installation of the side saddle. this works fine on the SXP, as I mentioned above.

the 2nd arrow shows the location of one hole i want to tap into the receiver. it would be just in the aluminum of the receiver itself, and would fit a 3/16" short bolt. i could use a 1/8" instead, possibly. this would be the second attachment point for the side saddle

the 3rd arrow shows where the second new hole would be. the aluminum of the receiver is about 5mm thick there. the side saddle has a curved flange that hugs the curved top of the receiver (I have an arrow pointing at that from the number 3 also), preventing the saddle from swivelling on the rear pin in the counter-clockwise direction (looking at it in this image). but that flange does not stop the saddle from swivelling up (clockwise). the second attachment point (at arrow number 2) woud prevent this clockwise swivelling, but it is colinear with the rear bolt (arrow number 1), therefore, a third attachment point at arrow 3 would be nice, as it would reduce flexing and generally firm up the attachment of the sidesaddle.

OR maybe i only need the 3rd point.

what do you guys think?

is it OK to drill either or both of these holes? i have the tools and skill to do it right, but i dont know if it is dangerous for the receiver or not. in either case, i would make a bolt that would extend just to the inside of the receiver aluminum, not beyond it.

the lower hole (number 2) seems like it would be OK, since that is right next to the open loading port anyway and certainly is not under pressure. the upper bolt location is closer to the action and the chamber, but still not under pressure at firing (i think).

TheOldMan 09-28-2011 05:06 PM

If you've got the tools and the skill there is nothing holding you up.. The holes you are talking about doing will in no way affect the integrity of the reciever.

stalkingbear 09-28-2011 05:57 PM

I don't see why there would be a problem IF you're dead set on drilling the holes. You realize it will hurt the value if you're ever forced to sell it right? You might consider a different sidesaddle shell carrier as Tac-Star stuff if pretty cheap and a better fitting carrier might not exhibit the problems you're having.

kingfisher 10-14-2011 06:13 AM

Hey thanks for the responses guys!

I wont be selling it.

i looked for a while for anything like this to fit this shotgun. i could not find a single other side-saddle style shell carrier to fit any winchester. in fact, this one is built for the winchester 1300. it does fit really well as far as the surfaces meeting the receiver, but the clip at the bottom is wrong.

do you know of any other side-saddle carriers that might fit this shotgun?

trex1310 10-17-2011 01:30 AM

You know you will be ruining a perfectly good shotgun. That said,
I doubt you will get many threads even with a machine screw tap.
Good luck.

kingfisher 10-17-2011 04:48 PM

care to expand?
 
Hey Trex,

Maybe you didnt read my post, but, actually, that is why I posted the question: because I DONT know if I will be ruining my gun.

Now, several guys have said it will be fine, but you seem to be saying that you dont think its a good idea.

I have a lot of experience with metalworking, ferrous and non-ferrous. I can do precision machining in my shop. I have 5/32" of aluminum to work with. With 48 threads per inch, I can get 7 threads. I think that is plenty, considering that each of these new bolts will only be carrying 1/3 of the shock, and only with respect to the mass of 6 shot shells and the tac-star carrier.

Can you explain why you say I am ruining my shotgun?

I am open to the idea that I may be risking damage to my shotgun, and I want to be sure I am not. I am also open to the idea that you are just mouthing off and dont really have anything to say, but I am hoping that is not the case.

I honestly am interested in your thoughts on this, if you have anything useful.

Axxe55 10-18-2011 01:56 PM

Quote:

Originally Posted by kingfisher (Post 603527)
Hey Trex,

Maybe you didnt read my post, but, actually, that is why I posted the question: because I DONT know if I will be ruining my gun.

Now, several guys have said it will be fine, but you seem to be saying that you dont think its a good idea.

I have a lot of experience with metalworking, ferrous and non-ferrous. I can do precision machining in my shop. I have 5/32" of aluminum to work with. With 48 threads per inch, I can get 7 threads. I think that is plenty, considering that each of these new bolts will only be carrying 1/3 of the shock, and only with respect to the mass of 6 shot shells and the tac-star carrier.

Can you explain why you say I am ruining my shotgun?

I am open to the idea that I may be risking damage to my shotgun, and I want to be sure I am not. I am also open to the idea that you are just mouthing off and dont really have anything to say, but I am hoping that is not the case.

I honestly am interested in your thoughts on this, if you have anything useful.

what trex is talking about is the thickness of the receiver not being thick enough to be able to get enough threads in to hold the screw. how thick is the receiver where you want to drill and tap? that is the point that trex is making because if you start drilling holes and trying to tap them, then putting a screw in and try to tighten it and then it pulls the threads out, you now have a useless and ugly hole in your shotgun, ruining the value of it.

TheOldMan 10-21-2011 12:32 PM

Kingfisher I personally think you know what you're doing and I'd not worry about the threads not catching. You intend to keep the gun so no harm no foul in my opinion. We're not talking about a high dollar shotgun anyway so set it up how you like ..

I find more fault with folks who paint their guns pink or douse them in fake high polish gold but that's just my opinion.


All times are GMT. The time now is 07:55 AM.

Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.