I should have mentioned, hacksaw 101:
Use a new, fine tooth blade
Mount it in the best hacksaw frame you have or can borrow, snugging up the adjuster to just get the play out, then 3 full turns more for proper tension, all the while ensuring the blade stays straight
It cuts on the forward stoke only, dont drag it back through the cut, stroke forward, lift and back, repeat with smooth, even strokes, no rush, keep your eye on the line of cut.
Always hold it with both hands in a cut, standing somewhat sideways for good control
Have the barrel clamped firmly in a solid bench vice using soft jaws to hold and not mare the finish