RE: Howa 1500???
Yes, Remington 700 mounts will work, but, you usually have to turn both of them around. I' ve mounted several and the long rear mount almost always gets in the way of the bolt when it' s lifted. That' s all I had to work with, but if I had something better, or made for it, that' s what I' d go with. We carried mounts for most popular firearms, but none specifically for the Howa.
They are very good rifles. They are basically a Weatherby Vanguard. Howa made the Vanguard for Weatherby before putting their own name on it. The only difference I could see between the two was the shroud on the back of the Weatherby' s bolt.