I’ve got 2 quite old ADI Handloader’s Guides. One is actually a Mulwex guide and in it Mulwex have just introduced AR2213.
Using data for 270 Win (260 not around then) 130 gr projectiles, both guides list 58.0 gr as max. Unfortunately, early ADI data only listed generic projectile weights, not specific brands and types.
The current online ADI guide listes several brands of 130 gr projectiles with max loads of AR2213SC at 60.0 grs, 2.0 grains over the old AR2213.
When comparing old guides with new, in a lot of cases the new guides show slightly reduced loads over the old. Not always though. Also, the modern ADI guides have tended towards being a tad conservative.
So does this mean the old 2213 is fractionally faster than the modern 2213sc – I don’t know. See @Tankd posting.
As always, work up in load weights and so drop the 2213 load a grain over the recommended starting load for 2213sc until you get some velocities to compare.
Also, how much 2213 do you have? I have in the past turfed superceded powders I’ve had when I’ve only had small quantities of them. Hardly worth taking the time and effort to work up a load for a powder you won’t be able to get more of.
Once you run out of 2213 I recommend you will need to redo some of your load development checks when changing to 2213sc. Similarly when starting a new batch of the same powder.
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