I’ll bite then, so tell be just what makes the Impact better or different than a Surgeon?
A few in no particular order:
1. Better primary extraction geometry
2. Interrupted bolt fluting to prevent contact with mag lips (if resting on the magazine and in a chassis that allows it)
3. Headspace and index tolerance held on bolt and receiver to allow interchangeable barrels even when changing family of cartridges. Barrels in stock.
4. Better support of cocking piece by the receiver
5. Trigger hanger to allow easy timing, and trigger changes
6. Better extractor
7. Better surface finish
8. Stronger bolt handle attachment
9. Better ejection port design to move case off axis from port
10. Black nitride for harder, smoother moving parts, ready to shoot, not blasted raw
11. Actions assembled and tested before shipping
12. Bolt stop fence above water line to allow simpler fit in stocks/chassis
13. Higher bolt root design requires less or no fitting in 700 chassis
14. More consistent trigger to cocking piece height.
15. Better angularity tolerance: bolt ID to OD
16. Better angularity tolerance: receiver to bolt raceway
17. More reliable mag feed port design
18. More rigid tang design
Wade