Now what can I do?

[lineman69]

I have just returned from shooting a brand new custom 300 WSM.The situation is I have two rifles same caliber the old factory like 67.5 grains RL17 (this is max for this rifle)so since ive had such luck with RL17 I thought be best to use in new gun.Now to start loads for new gun I started at 64 grains showed flattend primers and sticky bolt right out the gate.So now *** do I do?

 

[boomtube]

"So now *** do I do?"

Do what the books say to do when you encounter excess pressure signs, drop back maybe 5%, or a grain or so. ???

 

[lineman69]

Yeah thanks for reply my question is does this make sense?Or could this be something caused by gunsmith say headspace?