Conflicting Load data for .308
New to reloading. Loaded up my first batch of .308 168 gr Sierra Tipped Match King. Used the Lee Manual for load data. Lee manual indicated a maximum of 45.9 gr of IMR 4064. So I loaded up five rounds at 42 grains, five at 42.5, and so on, up to 45.5 grains.
Just happened to come across the Sierra manual which indicated a maximum of 43.6 gr of IMR 4064 for 168 gr. BTHP. Not exactly the same bullet, but real close.
This 2+ grain difference seems like a lot to me.
Anyone else experienced this situation?
Good to Go with the load from the Lee Manual?
Thanks in advance for your input.