larger threads for optic base

[91xlt]

i see some drill/tap out the threads on the top of the receiver for the optics base, is this needed or desired.
is there actual benefits too it?
is it stronger?

 

[Keith Johns]

Re: larger threads for optic base

One reason, http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2414434#Post2414434

Second reason, theyre stronger