Thread: 300 wsm vs 7mm RM

Originally Posted by GWH

If you were planning on shortening the barrel a little and suppressing it. The 300Wsm probably has the edge, less loss of velocity, and believe it or not if you had the same length barrel on both 7rm and 300wsm, due to the shorter case you actually have slightly longer rifled barrel length with the wsm.

In reality it's horses for courses, there's really not a lot in it, bullet selection will have more effect than the differences between those two cartridges.

I reckon you could argue the opposite. Look at the 7mm rem mag superpigs being done with 20” barrels pushing the 162s at 3k. I know a few guys with them now. I understand the 300wsm pushes the 178 at about 2950 from a 20” barrel so will have a bit more smack up close but ballistically the 7mm is better.

But saying one is outright “better” then the other is the same old recipe for disagreement haha.