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**Brian Pfleuger** · October 14, 2012, 11:57 AM

That's why you start at starting loads and work up.

Yes, a different OAL affects pressure. So does different brass, barrels, chambers, powder lots, primers, temperatures....

October 14, 2012, 11:57 AM	#4
Brian Pfleuger Staff Join Date: June 25, 2008 Location: Central, Southern NY, USA Posts: 14,503	That's why you start at starting loads and work up. Yes, a different OAL affects pressure. So does different brass, barrels, chambers, powder lots, primers, temperatures....