Probably work just fine in your 700... it works like a champ in my Savage(s).
Gas guns... not so much.
And my Zermatt/Bighorn Origin had some quirk about the bolt head where it doesn't work so well. Can't remember for the life of me what it is, but I'm sure the next time I go to use it, it'll occur to me
The tighter the freebore diameter in the chamber, the more having minimal TIR in the loaded round will affect your 'readings'. Obviously not a problem for high-end guns like what Alex builds, or even really for any decent aftermarket barrel. Factory barrels... might not work as well in every instance.
Works great for me in two TL3s. If you’re referencing the cross bolt that holds the bolt head in the bolt body, a single layer of scotch tape on the bottom will hold it in and provide no resistance to working the bolt.