I’ve Ransom rest tested my X5, Xcarry, and my Xvtacr2. All prefer 147g pills . All will shoot 5 round groups under 1” at 25 yards with the proper load. Try loading a Precision Delta 147g tcfp over 3.1g of titegroup. Loaded to 1.130”.
I size using an egw undersize sizing die
expand in the 650 using a DAA powder funnel/ basically a m-die for the Dillon
I then seat using a Redding competition seating die.
no crimp
Without a ransom rest you are wasting your time “testing” anything. I’ve tried 124g jhp They will shoot around 2” at 25yards best I could get out of the 124s .
side note: my XCarry is the most mechanically accurate of the bunch shooting just under 3/4” at 25 yards with the load listed above. I normally shoot 4 -5 round groups and average them to get these numbers