My general thought process is that when a cartridge can get a bullet with a sectional density over .300 to a velocity over 3000 fps, it's a high velocity cartridge.
When you have a bullet that will consistently perform ,as intended by the manufacturer, at impact velocities over 3000, it's a high velocity bullet. I may not agree with how the bullet performs at that 3000 fps impact velocity, but if it behaves the way it was intended to, my opinion is meaningless.
Most of the monometal bullets perform well at what I consider high velocity. I've also been really impressed with how well Swift A-frames perform at what I consider high velocity. Lots of bullets perform how the manufacturer intends them to at what I consider high velocity, but don't perform how I like a bullet to perform. They're still "high velocity" bullets by my definition, just not ones I would use.
When you have a bullet that will consistently perform ,as intended by the manufacturer, at impact velocities over 3000, it's a high velocity bullet. I may not agree with how the bullet performs at that 3000 fps impact velocity, but if it behaves the way it was intended to, my opinion is meaningless.
Most of the monometal bullets perform well at what I consider high velocity. I've also been really impressed with how well Swift A-frames perform at what I consider high velocity. Lots of bullets perform how the manufacturer intends them to at what I consider high velocity, but don't perform how I like a bullet to perform. They're still "high velocity" bullets by my definition, just not ones I would use.