Since you all are obviously experts I should only have to do this once. Just got the info from Winchester website. Pay attention you experts muzzle .280 140gr BST velocity 3040 energy 2872/ 7mm mag muzzle velocity 3100 energy2988. Now is there anything you don't understand? So I was wrong saying 1/3 the recoil it just seems alot less than my 7mm mag I used to shoot. So to all you experts GET BENT. I had thouht this website was about advice not ridicule.
There is something I don�t understand and that is why you got so BENT about this. You made an assertion that was wrong and got called on it. At the same time you were right about the .280 and 7mm Rem Mag loads AS PROVIDED BY WINCHESTER.
I wasn�t going to question the relative performance of the two cartridges - but since you seem to insist on discussing it I�ll provide a few more data points. People can draw their own conclusions.
Here are a few maximum velocity loads for the .280 and 7mm Rem Mag for 139/140g/145g bullets:
Lyman 48th
2989fps, 2757fpe = .280 Rem 139g
3275fps, 3334fpe = 7mm Mag 140g
286fps, 577fpe = Difference
Speer #12
2976fps, 2851fpe = .280 Rwm 145g
3153fps, 3200fpe = 7mm Rem Mag 145g
177fps, 349fpe = Difference
Hornady 5th
3000fps, 2778fpe = .280 Rem 139g
3200fps, 3180fpe = 7mm Rem Mag 139g
200fps, 402fpe = Difference
Barnes #3
3002fps, 2801fpe = .280 Rem 140g
3210fps, 3203fpe = 7mm Rem Mag 140g
208fps, 402fpe = Difference
Nosler 5th
3152fps, 3088fpe = .280 Rem 140g
3248fps, 3279fpe = 7mm Rem Mag 140g
96fps, 191fpe = Difference
Hodgdon Annual Manual 2006
2927fps, 2663fpe = .280 Rem 140g
3107fps, 3001fpe = 7mm Rem Mag 140g
180fps, 338fpe = Difference