Cabelas sold sporterized Investarms guns in 2 forms: a fast-twist carbine with a 20" barrel and 1:24 twist and a 1:48 twist 'Hawken' with a 28" barrel in both 50 and 54 cal. Think I've seen the 'Hawken' offered in 58 as well. I have the 50 carbine and it has the chrome plated bore. From what I've seen, both Cabela guns had the chrome bore. As I recall, both guns had gotten quite expensive just before Cabelas stopped selling them...they cost as nearly as much as a TC Hawken (which was close to $500 at the time).
I paid $175 for the carbine barely used/unfired on a Gunbroker deal, so $100 was an excellent price. Mine is very accurate with sabots, but the sights are poor. Biggest fault is that the rear sight changes its elevation setting way too easily. Still, I like the gun and it is very handy as a 'knock-around' rifle.
Investarms made their Hawken to be sold under their own name as well. AFAIK only the Cabelas versions had chrome lined bores.