Powder for 300 RUM?

So I started doing some reloading today.. Mainly just testing out the cases seeing if they'd get damaged and all that good stuff... I went up from 86-89 grains in half grain increments, I'm loaded up half a box of 89 grains to shoot tommorrow..
How much powder are you guys running with the RL-25 (through a Model 700 reciever)? 89 grains atm is clearing the magazine no problem and no case damage is visible yet and the primers and still fitting snug.. I just don't want to be pushing it too hard...

Thanks for all the great info so far guys, have been a great help! Pushing load development into overdrive now since I saw I was drawn for X3B zone in California (North East tip) if any california hunters are familiar with this zone please PM me /ubbthreads/images/graemlins/wink.gif
 
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