u/jerelsmizzles

Okay - for starters - relatively new to reloading. Im shooting a sig cross in 6.5cm with a proof research barrel. I have some brand new starline srp brass that im using at a COAL of 2.81 (manufacturer data attached). I still ran the brass through the sizer but after finishing the load - it feels TIGHT (in regards to chambering, I have to use a good bit of force to get the round to chamber and get the lever down. Is there anything that i may have done wrong for it to be so “tight”. Should I lower the C.O.A.L ?