You can't turn a 300 WM into a 338LM just by swapping barrels. The 338 LM uses a larger bolt face and action. You could swap the barrels and have a 338 EDGE though!
You can't turn a 300 WM into a 338LM just by swapping barrels. The 338 LM uses a larger bolt face and action. You could swap the barrels and have a 338 EDGE though!