V.M.,
I personally do not like the simmons or tasco brand, the simmons is like looking thru a toilet paper tube, and the tasco seems to fragle, Take a look at the Busnell banner or trophy line, and this will keep you in the $100.00 range.
And if you elect to drill &tap the sp-10 the trophy will take the abuse.
RON KONTOWSKY
DEAN`S GUNSHOP II
GUNSMITHING DIV.