I am going to work up some loads for a friend who just bought one.

He bought retumbo, 140 and 160 grain accubonds. I am having trouble finding a published load for these tips. I have read to be very careful with this caliber and not to substitute components.

Any loads, suggestions or advice for loading for this caliber would be much appreciated!

I'd use data for the Ballistic Tips if you can't find it for the Accubond. Lay them next to each other and you can't tell them apart.

Try Steves as a starting point
http://stevespages.com/284_27_160.html

Ramrod, thanks for the good two cents. I called Nosler and they told me the load data for the ballistic tips an accubonds are interchangeable. Now, I have to find a load for the 140 grain BT and I will be set!