what does it mean when a gun is "drilled and tapped"?
 

my mossberg sluggster model 24 is drilled and tapped. do this mean i take those screws out and put on a rail? im looking to put a low power scope on it. if u have any knowledge about the model 24 please tell me cause i inherited this gun from my fathers friends dad. thanks

Yes, the term "drilled and tapped" refers to the reciever and or the barrel being able to accept a sight mount.

Yep. What you said. Remove them, and get a base that'll fit.
-Jake

To take this a step further, what do you think about the guys who have the base mount holes drilled out for larger screws?

Extreme overkill or what?

Tom

I have had a T/C Contender barrel chambered in 375 JDJ base mounting holes opened up to take 8-40's and also several tactical rifle setups opened up to take the oversize 8-40tpi over the standard 6-48. Doing so will help keep the base secured to the firearm in rough conditions. I had the scope and base shear off the 375 JDJ while shooting it, the scope clocked me right in the eye before falling to the ground. It hasnt happened since going to the bigger screws.

Why bother? unless you stripped the threads etc...

I run into this thinking a lot.... for example a bolt will hold 5000 lbs, and a guy thinks well a 10,000 lbs bolt is better right? When you only need to hold 1000 lbs?

Also why make work for yourself if you don't have to?