Suggest a good filler for my 870/1100 stock?

[IanC]

I have a reverse comb butt stock from a remington 870 that i want to put on
a remington 1100 shotgun.
The stock had a 3/8 hole drilled with a tapered 1"hole drilled to meet up from the butt end.

I gave it to my uncle to drill the 3/8 to 5/8 for the 1100, who assured me he could do it, well The problem is when the 1 inch hole was drilled it was offset to the 5/8 hole. So now the spring action tube goes through the stock the washers and stock nut dont fit in line and there is not enough of a shoulder to screw it all tight. Also when it was originally drilled the access hole for the smaller
3/8 hex has a taper and was not done very cleanly.

What i am planning to do is wrap a 5/8 dowel with tissue paper insert it into the stock then fill around it with a compound. So that there will only be a 5/8 hole through the entire stock lenght. Then i can use it as a pilot and drill the 1 inch hole in the butt so everything is straight. There is really a lot of empty space to fill in around the dowel. The cavity is about 1x4" deep

What filler should i use so that i can drill into it and have it support the tension of the washer and nut needed to hold the stock to the receiver.?

Do you even understand what im doing do i need a picture?
Hope you can help
IanC

 

[Can-down]

Epoxy mixed with micro bubbles to thicken it up should do the job.

 

[BEARMAN]

I know your 870 butt stock is special but check out " a styer 95 " ad in EQUIPMENT EXCHANGE he has 1100 stocks and fore ends new and used, prices seem reasonable. May save a bunch of work and maybe more expense.

 

[Workin Man]

Either epoxy, like Can-down mentioned, or fiberglass reinforced auto body filler. In either case make the dowel long enough that it sticks out both ends of the butt stock and wrap it in plastic, not tissue paper, or it will be glued in there solid.