Dixie Gun Works sells Buffalo Pistol Bullets in .45 cal. (.457 dia.) that look like Buffalo Ballets for rifles. Their catalog features 1 review by a pistol shooter for the same bullet design except for a .36 cal pistol (.375 dia. - #BT 0606):
http://www.dixiegunworks.com/product...reviews_id=512
The .45 cal bullets can be located on this page and are item # BT 1201:
http://www.dixiegunworks.com/default...ort=1a&&page=3
Their home page is located here:
http://www.dixiegunworks.com/default.php