Not really blocked, but gated. Leaving from the clear cut, you have to go up 7013 and that road is gated. Was just up there yesterday. 6/18/18

Might be able to get there on FS7140 but thats 10+ miles of unknown road.

I'll be riding the Harley. There has to be good places to shoot??

Check out google earth. The spots I go to, my friends who ride wouldn’t try it on a street bike. There are lots of places up there! I’ve shot 850 yards.... had to get creative on set up, but it can be done. Just be careful of your backstop and pack out your trash. On a bike I doubt you’ll have much. But we have to be good stewards.
ETA: most of us are loath to give up our honey holes. Unless I know you or you come with recommendations I never do. Sorry, but I’ve been burned before. Had a beautiful spot, took a friend who brought an unknown to me friend and within a year it was trashed. Did the unknown do it? Don’t know but since then, I keep my spots to myself.

Thanks for the input. I ride a big ole Springer but I used to ride motocross so it's not a big deal to me if I have to get the bike a little dirty. I've been searching with google earth but sometimes it's hard to tell what's a gravel pit or not.
I shoot my 375 and 9mm don't need much distance... I ALWAYS do the cleanup and I bring a big bag of apples and oranges for targets so the critters get a little snack after I'm gone.