yeah, strictly speaking, none of the BB guns can blockshot other than the uk quads.

what you'll be looking for in US BBs will be a consistent spread

Blockshotting and blockshotting are 2 different things. Just because now and then
your shells all land together or near enough together, that doesnt mean you
blockshot. Blockshotting is when everyshell lands almost on top of eachother
everytime you shoot. Montana's and SoDaks blockshotting... not likely. More likely
they have close GROUPING, but they are not blockshotting. For a better definition,
check out the York 8" or the KGV/POW quad guns. THATS blockshotting.

Mine did for awhile, I use the sodak and when i first got it it blockshotted for awhile, so
they can. Heard storys of montys block shotting too

the triple 12" guns will block with high level gunners
the triple 8" will block with mid level gunners that dont have a serious lack of
vets/experts
the trip 6" will block eventually

the BB1 12"/14" come close.

Anyway your guns will blockshot in the mid 50's as long as they have atleast 100 vets,
full experts, boost, you went acc-acc, and they arnt base 9.

In terms of true USN block shot, the 8" Mark 14 will block first and the 6" trips will
block the latest mainly due to the FCS.

I believe 8" is the largest USN gun that will ever block. UK is the only nation (to the
best of my knowledge) that has BB guns that will block.