I have a 260 Remington and never saw the benefit of going to 140 class bullets. I’ve always shot 130s. 130 Accubond, 127 LRX, 124 Hammer, 130 Berger ar hybrid otm, 130 TGK, and 130 ELDM. The ELDMs are where I landed in my rifle and I’ve killed many many deer and several elk. Not a single...
I just use if first before my FL bushing die. Cortina die hits the base and FL die hits everything else without pushing the base back out since it’s a close fit at base of the FL die on mine just didn’t quite squeeze enough.
To me there is less risk than a Lee collet neck mandrel die that...
I didn’t realize Cortina made a mandrel die for your cartridge or I would have said it sooner.
His die fixed my 300 WSM sizing issue at the 0.2 line area and my father in laws 270 WSM.
Look up Alex Wheeler on his website or YouTube. He has a video explaining the various measurements to take to figure out how well or poor your sizing die fits your chamber. Brand or die quality means nothing in regards to how well it fits your chamber and both chambers are very likely...