Sorry, running a 140g TTSX which has a top of 64g R22 for 3265fps in the latest Nosler book. Each gun being different and the higher pressure from the Barnes is getting me up there quicker I think?
Using Nosler data for a Barnes bullet ? For a standard .280 Rem the Barnes manual max for a 140gn pill is 57gns of RL22.
Flat primers, brass flow into the ejector hole and stiff bolt lift means your loads too hot, its that simple. If it was me, I'd reduced the load by 3gns.
