New to the forum. What are Sum Toy chokes? and what are tss shells? and what are the differences in tss shells and nitro shells?
Nitro's as referred here most of the time are semi-custom turkey ammo manufactured by Nitro Ray.
http://nitrocompany.com/ammunition.htm
SumToy chokes are some of the best on the market and is what rides in a lot of turkey guns here.
TSS is Tungsten Super Shot and is 18 g/cc and is bad to the bone but sooo expensive!
Like Daman said, TSS has a density of 18 gm/cc compared to 12 gm/cc for the HS in H13 and Nitro Ray's standard (not Mega-Weight) HS loads. That allows you to shoot smaller shot than you could with HS. Patterns with TSS 9s are amazing and will kill a turkey really, really, really dead at 40 yds. ;) But it is a handload only proposition.