no physics law here, just noticeable, perceived recoil i guess. but it is alot more pleasureable to shoot then my 270 thats for sure. btw, laws of physics means a 130gr. .270 pill should recoil less than 150gr. 308 pill. explain that professor!
Actually, that is not necessarily the case at all and the “laws of physics” say something entirely different. Bullet weight is only one component of recoil – velocity, powder weight and total firearm weight are the other major components.
Using load data from Hornady’s 7th, (average powder charges per velocity) and “Point Blank” to calculate recoil:
20.40 foot-pounds recoil @ 12.58 fps = .270 Win, 130g, 3200fps, 67.0g powder, 8.3 lb rifle/scope (MAX listed velocity)
18.66 foot-pounds recoil @ 12.03 fps = .270 Win, 130g, 3100fps, 63.0g powder, 8.3 lb rifle/scope
17.48 foot-pounds recoil @ 11.65 fps = .270 Win, 130g, 3000fps, 61.0g powder, 8.3 lb rifle/scope
16.11 foot-pounds recoil @ 11.18 fps = .270 Win, 130g, 2900fps, 58.0g powder, 8.3 lb rifle/scope
15.02 foot-pounds recoil @ 10.80 fps = .270 Win, 130g, 2800fps, 58.0g powder, 8.3 lb rifle/scope
15.45 foot-pounds recoil @ 10.95 fps = .308 Win, 150g, 2800fps, 46.0g powder, 8.3 lb rifle/scope (MAX listed velocity)
As you can see, the .270 Win with a 130g bullet often has considerably more recoil than a .308 Win/150g when using similar weight rifle/scope combinations.
Just one reason why a .308 win/150g is a often good choice for the recoil sensitive.