When two boats share the same hull type — in this case both the Premier Boats Boundary Waters 310 2009 and the Premier Boats Grand Majestic 275 2007 are pontoon designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Premier Boats Boundary Waters 310 2009 measures 31,0 feet overall (2009), giving it roughly 4,0 additional feet of deck space compared to the Premier Boats Grand Majestic 275 2007 at 27,0 feet (2007). At 39 lbs and 31 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 200 hp, the Premier Boats Grand Majestic 275 2007 has a 50-hp advantage over the Premier Boats Boundary Waters 310 2009's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 3 gal and 3 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Premier Boats Boundary Waters 310 2009 is rated for 21 passengers, while the Premier Boats Grand Majestic 275 2007 caps at 19. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Premier Boats Boundary Waters 310 2009 could be the deciding factor.
Bottom line: Choose the Premier Boats Boundary Waters 310 2009 if your priority is putting more people on the water — it handles 21 passengers and at 31,0 ft it has the deck room to back that rating up comfortably. The Premier Boats Grand Majestic 275 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 19 that costs less to run day-to-day.