I just found a can of old Rel 12, but find that it has been discontinued. Anybody have any data?

What caliber and bullet weight do you need it for? I think I have a couple of old Alliant load biiks laying around somewhere.

How about a 308 Win, 30-06, 8 x 57?

I found some data in an old Nosler book.

I have a 4 lb jug(1 gallon size) of RL12. It is a super powder for me in the 308 Win.
I my Parker Hale heavy barrel rifle in 308 it will shoot one ragged hole and in the AR10 it will shoot under an inch all day long with 41gr. of RL12 and a Hornady 155 gr Amax bullet. If I run across any at a Gunshow it will surely go home with me. It is on the lower end of the reloading scale so it is pretty mild also.

Steve E........

.30-06
110 gr 57.0gr 3,280fps
125 55.3 3,170
150 53.6 2,960
165 51.1 2,785
180 49.6 2,695 58,500c.u.p.

.308
110gr 50.5gr 3,200fps
125 49.0 3,040
150 45.0 2,755
165 44.0 2,650 57,400c.u.p.

8mm
125gr 45.0gr 2,720fps
150 43.0 2,455
170 40.0 2,280 35,500c.u.p.

from Alliant reloaders guide 1996. These are listed as max. loads. I only gave max. listed pressure for each caliber. Hope this helps.

OK, thanks