The .270/130 grain bullet is the classic deer load for .270 caliber. Deer are NOT hard to kill, so just about any good 130 grain bullet will get the job done.
I prefer and use only Nosler Partition or Nosler Ballistic Tips. However, Sierra, Speer, Hornady and a good many others make fine bullets for the .270 caliber rifle. Just make sure you don't choose too "hard" of a bullet... one that is meant to penetrate deeply into and kill elk or moose. You want the bullet to expand IN a deer. And so, the classic, quick-expanding 130 grain bullet is what you want to use in your .270 Winchester caliber rifle. The 130 grain bullet in a .270 is a hard-hitting, flat-shooting bullet/caliber combination and will get the job done if you do your part and place the bullet in the deer's "kill zone".
The heavier 150 grain bullet is actually meant for larger, heavier animals than deer... animals like elk, moose and bears. As a result, greater penetration is needed and, as a result, the bullet manufacturers make the 150 grain bullet's jacket heavier than the 130 grain bullet's jacket which, naturally, limits the 150 grain bullet's violent expansion in a lighter, smaller-boned animals like deer.
This is why so many hunters find the heavier .270 caliber, 150 grain bullets shoot "THROUGH" a deer... sometimes doing little damage and only wounding the deer which allows the deer to run off and die well beyond the hunter's "search range".
Among other "responsibilities" a hunter has, a true hunter has the responsibility to research and choose the very BEST bullet/caliber combination for the intended game.
CONGRATULATIONS!!! That is EXACTLY what you've just done!
Strength & Honor...
Ron T.