If they are definetly Hornady cartridges and they have a lead nose then they are the standard spire point bullet and most likley of the innerlock design. "The innerlock" is simply a ring on the inside of the copper jacket that forms a "lock" with the lead and is suppose to help hold the jacket and lead core together better.

No way of knowing how much they weigh with our pulling a bullet and weighing it.

The 150 grain bullets will be a flat base bullet
THe 165 grain bullets will be a boat tail bullet.
The 180 grain bullets will be a flat base bullet.

It does not sound like you have the box cause if you did you wouldn't be asking this question but if you do then find the item number and go here............ or simply read the box.
https://www.hornady.com/shop/