So w
.300 RUM/225 ELD, 7WSM/180 ELD. I used my actual velocity in the 7WSM with 25" barrel and compared both using pressure-tested data and QL. I gave the RUM every advantage I could- 1000 psi higher peak pressure, an extra inch of barrel, etc.
Sucks to burn nearly 40 gr more powder with every shot, and still come in 2nd place 
So what does a 180gr bullet and a 225gr bullet have in common ? … NOTHING !!!
If you want to compare Bullet's and Velocities of a 7 WSM & a 300 RUM :
…………. 7 WSM …………….300 RUM ………...
………. 175gr ELD-X ……….178gr ELDX ……….
…... 71.0gr - MAGNUM ….. 90.2gr - RL - 26 ......
….........2,900fps .................. 3,250fps .................
Only 19.2gr more powder with a velocity increase of 350fps.
Below is a picture of Cartridges as an example of 30 Cal and 7 WSM.
The Thrill of Victory .... The Agony of defeat
