I have an STW in a Remington stainless sendero and love it. My buddy has a 300win mag in a 700bdl stainless and loves it too. They are very similar in ballistics, not worth arguing over. I'm pushing a 140Barnes to nearly 3500fps, and a 160 gr Accubond to 3300 with no signs of pressure. My buddy is shooting a 165 accubond to 3250 in his 300. I have him beat a little bit on trajectory, but he can use up to a 200 gr bullet in a 300. 7mm only goes up to 175. It's all in what you want. Keep in mind a lengthy barrel is necessary to take advantage of the mags potential. And nowadays, you can't find a new STW. They will either be used, or custom built, nobody I know of chambers them anymore.