For many years my dream has been to take an elk with my 30-30 and open sights. Not at a 1,000 yards, I’m thinking 150 max.
I worked with a man from western colorado
that I frequently talked with about different 
hunting things. 
He had worked a good many years on a 
large ranch that had a good many elk
and mule deer. One time we had talked 
about firearms, and I had mentioned that 
the "biggest " rifle I had at the time was 
a .308 and I wouldn't be able to hunt 
colorado with that.  He gave me a look 
like I had a third eye in my forehead. 
He told me that most of the ranchhands
there regularly killed elk and mule deer 
with 30/30 winchesters and marlins
and the cheapest ammo they could find. 
Most were shot out of a truck window at
50-75-100 yards and didn't need but the 
one shot. Make a hole in the right place 
to shut down the pump and they die
Arnold said in one of his movies that 
" If it bleeds, we can kill it.  . "
Very true