well one reason is that i had this made up in the summer of 2001 i think. i've only been to the range once since then. the range is not real close to my house and with the funds i will either buy a NM lower for my new NM upper or get a nice pellet rifle that i can shoot in the basement.
i started Graudate school in the winter and my time is limited now. i can shoot pellets in the basement more often than driving to the outdoor range. AND when i went to the range this winter, they moved the heaters so now the rimfire building is not heated. even when shooting at about 40 degrees, i get cold quickly and that is bad for offhand shooting. LOLOL. i like shooting, but i don't like freezing and shooting. LOLOL
the weekends that i can shoot are the weekends that have matches, so i go to the matches instead of shooting the rimfire upper. school sucks! ;-)
there is nothing wrong with the upper. it's a nice upper too, but i probably should have thought about this purchase more than i did.