Like said when changing a component your better to start lower and work up. I believe the IB is slightly longer than the SST, though I don't have any SST's to reference this to at the moment so can't confirm that notion. I used the SST for a year in lieu of the NBT and never fell in love so went back to the Nosler offering.

As far as the IB like Roskoe I todidn't get them off the bench but this year a 280 I load for shot them unbelievably tight. I deceided to try a few in my 7mm rem mag and found potential but not wanting to defer I stuck with the NBT for this year. I will say the results from the 280 rem has me thinking about putting some effort into the IB once again. It performed very nicely in the 4 deer it harvested. 2 were through the shoulders and bothexits, producedwounds that were very tolerable for the placement.The other 2 were classic rib in and out shots, I am told the vitals were jello and the deer dumped a lot of blood. If you can't get it to shoot I think the IB has real possibilities as good polymer tipped deer bullet. The Nosler AB would be another to consider, I've found it to be very accurate and so far so good on deer, elk and moose in my case. Though I still have doubts about it as a heavy slugger on larger than deer game??/