you can get good quality and durability from Ontario or Cold Steel
Those are 2 samples from a multitude of options (Ontario Gen II and Cold Steel Trailmaster). You can see them tortured to the breaking point on www.knifetest.com, and both can be acquired for less than $100.
I would shop Busse knives (swamprat, scrap yard, or Busse) for top of the line, if price is not an object.
Sorry, I wasn’t clear. I should have said blade shape is not a deciding factor for me. I don’t mind tantos or drop points or anything else. Primarily I’d like something with a guard, so my fingers don’t slip off the handle in a thrust.
That Ontario knife looks mighty interesting. I’ll have to check it out. Pricewise, I’m looking to keep it under $200 if possible. The Busse knives are great, but I would be afriad to use it at the prices they command.
Your tip geometry is going to play a HUGE role in how much resistance you feel when thrusting. Daggers, purpose built for thrusting, have a really low volume, slender tip.
Tantos are chunky, to give strength to them (more for abuse than anything) but will NOT penetrate half as well as a dagger type point. So, if you want a blade for trusting, a tanto (or even just a chubby, thick design) will not penetrate as well, and will give you a higher probability of riding the blade.
Your grip technique, handle friction, and tip design all play huge roles in the security of your hand on the blade when thrusting.
By way of an example, here is a blade tailor made for thrusting:
Thin, spear point, handle does not extend far beyond the end of the hand, lets your thumb cap it without needing to lift up (loosing strength).
It does not have a guard because that can snag on a targets clothing or web gear.
If you are looking for a thrusting blade, I would consider the tip geometery, thickness (preferably not too thick), handle material, and handle length as key ingredients in finding the right knife.
The other thing I would add, is look at designs where the tip is centered in the grip, so the knife wants to enter straight down from where your hand is driving it.
my knife is 20 years old from when Mike Stewart had Black Jack Knives. now he is Bark River. I see he still likes the A2 steel and kept that blade profile. it’s a winner…