2025 Heartland Bighorn 3560EL vs 2025 Heartland Milestone 370FLMB

Detailed Comparison

Two noteworthy RVs face off: the 2025 Heartland Bighorn 3560EL and the 2025 Heartland Milestone 370FLMB. From dimensions to amenities, here's the full breakdown.

The Heartland Bighorn 3560EL measures 31.5 ft in length at 14,400 lbs, compared to the Heartland Milestone 370FLMB's 38.0 ft and 10,700 lbs. GVWR ratings sit at 17,400 lbs and 14,400 lbs respectively.

Capacity-wise, expect to sleep 4 in the Heartland Bighorn 3560EL versus 6 in the Heartland Milestone 370FLMB. With 3 and 3 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Heartland Bighorn 3560EL carries 72 gal of fresh water, 55 gal gray, and 45 gal black. The Heartland Milestone 370FLMB offers 74 gal fresh, 77 gal gray, and 49 gal black. The Heartland Milestone 370FLMB has the edge for extended dry camping.

Budget-wise, the Heartland Bighorn 3560EL is listed at $129,000 compared to $173,000 for the Heartland Milestone 370FLMB. The $44,000 difference could cover upgrades, accessories, or several seasons of camping.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

Take these specs as a starting point, then go see them in person — there's no substitute for stepping inside.