Buffalo, Scrub Bulls and maybe a Samba but not holding my breath re the Samba.

I shoot using a Bench Rest stand and rear sand bag with an additional rear sand bag set on end behind the butt as buffer for my shoulder.

I use the 602's set trigger feature and see the rifle jump confirming that my eyes are open through ignition.

I'm fairly sure I don’t have a flinching problem as I can readily shoot under inch groups with the 300 and 350gr RNFB Taipans set 20thou off the lands and an OAL of 3.65"

But the group size doubles for the 270gr Speer SPBT's

I intend now to attempt tuning a load for the Speer SPBT's by varying the charge with the OAL set to 3.6" to see if I can find the barrel resonance sweet spot.

Any Comments?........Peter