NOTE: How to sharpen this head: l.facebook.com...
This is a test of the Tuffhead Evolution Series 200 gr 3 blade, double bevel head. Previously, I tested the 2 blade and the tip of the blades rolled over in the hard impact test. I sent them back to Tuffhead, at their request, and they tested the hardness. As they expected, the hardening process of that batch had been done improperly. Those heads had a Rockwell of 48 rather than 55. I will gladly re test those in the future. But they also tested this batch of 3 blades and the hardening was correct--55 Rockwell. Let's see how it holds up to my testing.
In case you're not familiar with my new test protocol, here is what I'm doing now:
1. Flight Test--1 field point & 2 broadheads out my by Bowtech SR6 at 40 yds, to see how well they group together.
2. Sharpness Test: I have a new test for edge sharpness and edge retention, using the Edge on Up Sharpness Tester. I test it out of the box and then again after Penetration Test 1, to see the edge retention.
What are some common scores for other edges? Here are some examples:
A butter knife takes 2000 grams of pressure to break the co polymer wire.
A new high end cutlery edge takes approx 375 grams of pressure to break the wire.
A utility razor blade takes approx 200 grams to break the wire.
Based on the many broadheads I have tested, here is my scoring scale:
Out of the Box Sharpness:
0-200 gr: 10
201-300 gr 9
301-400 gr: 8
401-500 gr: 7
501-600 gr: 6
601-700 gr: 5
701-800 gr: 4
801-900 gr: 3
901-1000 gr: 2
1001-1100 gr: 1
1101+ gr: 0
3. Edge Retention: Sharpness difference after Penetration Test 1:
10 minus 1 point for every 50 grams of sharpness difference. For example, if the initial sharpness was 400 gr of pressure and the sharpness after Penetration Test 1 was 450, the head would receive a 9 for Edge Retention Score.
4. Penetration Test 1: one shot into a combined medium of 2/3" of rubber mat, 1/2" MDF and Clear Ballistics FBI Grade Gel. This is to roughly simulate the tissue of an animal--hide, bone and muscle/fat.
5. Penetration Test 2: one shot into layers of cardboard.
6. Durability Test: For fixed blade heads, I take up to 5 shots into .22 ga steel plate and then evaluate the damage to the head. This is a good test to see the overall durability of the blades, as well as their connection to the ferrule. For mechanical heads, I take up to 5 shots into 1/2" MDF and then evaluate the damage to the head.
7. Concrete Test. This is a zero penetration test, which is a good test of the overall structural integrity of a head.
NOTE: Of course I understand we don't hunt steel plates and concrete, but all of these tests simply provide DATA POINTS for you to use in determining which broadhead is best for your hunting purposes. A well placed shot with pretty much any broadhead will get the job done most of the time. But why not prepare for the worst and buy the best you can?
If one head can hold up to multiple shots in steel & concrete-and another cannot--all other things equal, wouldn't you want to use the head that can withstand the steel and concrete? And after taking hundreds of animals with my bow, I've seen some bone shots cause more damage to a broadhead than even a cinder block.
The goal for all of us is to stack the odds in our favor as much as possible, and select a broadhead that is as lethal as possible for our bow/arrow set up and for the animal we are hunting.
At the end of each of my broadhead tests, you will find a score sheet listing all the results of the testing, so you can compare heads based on what factors matter to you the most. I also have an overall LUSK GRADE that is an evaluation of how the head performed in all the tests combined.
PLEASE ALSO NOTE:
I have picked up a new sponsor that is my top recommendation for Broadhead Sharpening. staysharpguide... or @Innovative Outdoorsman These are the best, simplest broadhead sharpeners on the market today. They have a model for just about every type of broadhead there is. The support I get for that has helped me improve my channel.
Discount Codes for Broadheads:
SEVR: LUSKFIVE
Tooth of the Arrow: LUSK19
Afflictor: LUSK10
Any financial support I get from my sponsor or from the discount codes is invested into my channel.
28 авг 2024
