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Post by Doegirl on Mar 15, 2009 13:39:47 GMT -5
Beautiful day and a good time to tune in the zwickeys. They are pretty well behaved, actually. The 3/4" veneered particle board came out for some penetration testing. The Eskimo out performed the modified Grizzly. The Eskimo is 1 3/16" wide and the modified Grizzly 7/8". Grizz's weigh in at 245 and the Eskimo 260.  |
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Post by BT on Mar 15, 2009 17:59:20 GMT -5
Beautiful day and a good time to tune in the zwickeys. They are pretty well behaved, actually. The 3/4" veneered particle board came out for some penetration testing. The Eskimo out performed the modified Grizzly. The Eskimo is 1 3/16" wide and the modified Grizzly 7/8". Grizz's weigh in at 245 and the Eskimo 260. Who is the guy on here who has always said that a 2.5/1 will out penetrate a 3/1   Seems to me that same guy was saying how the radial slope would also outperform the straight blade heads ;D That said...is the Grizzly still dull? That would make a very real difference. I dont know if it would make that much of a difference but a difference none the less. |
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SPIKER
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Post by SPIKER on Mar 15, 2009 18:44:53 GMT -5
Who is the guy on here who has always said that a 2.5/1 will out penetrate a 3/1 Seems to me that same guy was saying how the radial slope would also outperform the straight blade heads ;D That said...is the Grizzly still dull? That would make a very real difference. I dont know if it would make that much of a difference but a difference none the less. I love how you enjoy being right.  |
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Post by Doegirl on Mar 15, 2009 19:00:56 GMT -5
Beautiful day and a good time to tune in the zwickeys. They are pretty well behaved, actually. The 3/4" veneered particle board came out for some penetration testing. The Eskimo out performed the modified Grizzly. The Eskimo is 1 3/16" wide and the modified Grizzly 7/8". Grizz's weigh in at 245 and the Eskimo 260. Who is the guy on here who has always said that a 2.5/1 will out penetrate a 3/1 Seems to me that same guy was saying how the radial slope would also outperform the straight blade heads ;D That said...is the Grizzly still dull? That would make a very real difference. I dont know if it would make that much of a difference but a difference none the less. Neither of them are sharp but there is an edge on the zwickeys. I also filed a small diamond point on my zwickeys as well. |
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Post by BT on Mar 15, 2009 19:15:52 GMT -5
Good.
I would have been surprised to have seen the longer ratio head out penetrate based on even diameter and I would have been surprised to have seen anything more than an even matching with the diameter reduced 40% on the Grizzly.
But....this is beyond what I have seen to be common.
So I am looking and what I see is that your arrows are smaller than the broadheads ferrule!.
This would generally add around 10% to the penetration but you are well beyond that.
You have something here that I haven't seen before and I am wondering if it can be replicated or if it is just a fluke (?)
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Post by BT on Mar 15, 2009 19:22:20 GMT -5
I love how you enjoy being right. It's the Father effect isnt it ?! ;D |
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Post by Doegirl on Mar 15, 2009 19:27:21 GMT -5
Good. I would have been surprised to have seen the longer ratio head out penetrate based on even diameter and I would have been surprised to have seen anything more than an even matching with the diameter reduced 40% on the Grizzly. But....this is beyond what I have seen to be common. So I am looking and what I see is that your arrows are smaller than the broadheads ferrule!. This would generally add around 10% to the penetration but you are well beyond that. You have something here that I haven't seen before and I am wondering if it can be replicated or if it is just a fluke (?) Or, another possibility is that I hit a weak spot in the board. If you notice, a big piece of board got knocked out by the zwickey. That didn't happen with the Grizzly. I did try using a lighter 550grain arrow with a zwickey and the head did not clear. I can't believe that a 100grains would make that much of a difference. Plus, it still did ever so slightly better than the grizzly. So the weak spot theory sounds plausible. Here's a pic of the lighter 550grain with the 668grain arrow below it:  |
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Post by BT on Mar 16, 2009 6:18:02 GMT -5
I didn't see the condition of the board before...only the face.
It looks as though the particle board has taken on moisture and that would throw the density off for sure.
If you want to know absolutely for sure what the deal is without variables, pick up a 2'X2' 1/4" plywoods sheet from Home Depot.
(they generally have this size.)
Shoot the opposite sides of the board with each arrow, 6" in off the side.
This will ensure that the strength of the board is uniform and unaffected by the first arrow strike.
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Post by BT on Mar 16, 2009 6:25:49 GMT -5
I'd like to see the bucket test again with two center shots @ 12 & 6 O'clock in a straight line....8" gap between arrows. Less hardship on the shafts and near 100% consistency for shot medium.  |
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Post by Doegirl on Mar 16, 2009 7:10:44 GMT -5
I'd like to see the bucket test again with two center shots @ 12 & 6 O'clock in a straight line....8" gap between arrows. Less hardship on the shafts and near 100% consistency for shot medium. I can do that  |
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Seems to me that same guy was saying how the radial slope would also outperform the straight blade heads ;D
