CVA still offers one in their APEX line. They used to offer a 45cal in the Accura line also just a year or two ago.

APEX 45 SKU CR4011S
Price: $615.95 MSRP but they can be found for less.
http://cva.com/CVA-Store-View.php?id=796
Accura 45 SKU: PR3117S
http://cva.com/CVA-Product-View.php?id=16

Knight offers a 45cal in the Mountaineer line only now.

IMO you are better off buying a 45/70 break action and having a breach plug installed by Slufoot on Dougs board. You get a faster twist and a true CF quality barrel. There are also several custom barrel makers that offer 45cal ML barrels for Encore/ProHunter and H&R platforms. Bullberry, MGM and SMI just to name a few.

Its really hard to beat a smokeless capable 45cal. 2700fps is a breeze with a 200gr sabotted bullet and sabotless takes things to a whole new level of performance.

Last edited by Overkill45; 09/28/14.