Best Meat Cross-Breed with Katahdin Ram

I've got a purebred Katahdin ram (registered) and a few katahdin ewes, which I breed for meat, free mowing, and seed stock. Regarding meat, I'm thinking there are probably some breeds of ewes I could mix with my purebred Katahdin ram to get faster and/or better weight gain. Is dorper good, or would anyone recommend a beter breed to go with my katahdin ram?

royal white if you are able to find any close (developed privately - largest of the hair sheep breeds)
dorper (for better size/muscling)

there are various other hair sheep breeds but most arent as large as the katahdin.
ive heard barbados crosses are really tasty.

you could also terminal breed to a wool sheep if size is the goal, might be a bit "gamey-er" though.

I recently purchased 4 ram lambs for meat.  2 are Katahdin and 2 are katahdin/dorper crosses.  The breeder from whom I purchased the lambs said she is breeding in dorper with the katahdins to "beef" them up a little.  The katahdin//dorper crosses are noticeably bigger than the pure katahdins.  

Katadin/Dorset

Dean, I clicked on your profile before I added my 2 cents. We are in the same area. I live in Berea, Ky. I had feet problems with the dorper crosses I had. Might just of been the ones I had. I talked 2 a local ranch hand once that grew up running Dorpers on a range in South Africa, and he said they never had and any feet issues. He said it was so dry that the stock density was 10 acres a head. Thus I believe getting 48 inches of rain a year (like we do) creates conditions that dorpers have not been selected for yet. Like I said might just be that I had some culls. I seen a Kat ram in Knox Co ky, that had to be pushing 300 pounds. Critter was a beast. I got a ram from the same flock, and lost it to pneumonia that winter. That guy sold out due to cancer. Had some beautiful stock.