RST has not stocked Nice Shot in years

you can still get Nice Shot in bulk for reloading - sizes 6 and 7.5 great stuff- just pay attention to the pressure- they say it adds 1500PSI - but with one load i had tested it was 2000 over the data in the Lymann book

http://store.fastcommerce.com/niceshot/nice-shot-bulk-40288bd844a0c0860145067c6dca28d7-c.html

the Kent Bismuth is a new alloy and is said to have resolved the fragmentation issues

i have had good luck with it on duck in the larger sizes

Kent TM is great stuff - a little pricey