Aluminum

I am now... procurement is an issue and will only get tougher. You guys are a treasure trove of info.

 

Hard to beat the easton axis and easton sells the brass inserts for them. No searching for components but you will most likely have to order them.

A bow will be quieter with heavy arrow be it aluminum or carbon.

The axis has the HIT insert that is glued into the shaft deep and allows the diameter of the broadhead shank to go inside the shaft which allows the broadhead better alignment with the shaft. Some don't like these inserts (which I really like) and for those, easton has the HP inserts in some of their shafts like da torch arrows. HP inserts are longer than standard inserts which also gets better alignment with the shaft. However, da torch arrows are lighter per inch and would allow for a really high FOC arrow if you go with brass inserts and really heavy broadheads.

Thinking of making this switch myself. I can get down to 425 gr or 450 gr arrows without losing FOC but I doubt the da torch is as tough as the thicker walled axis. (Which is about as perfect a hunting shaft as you can get)

 

i thought this was a aluminum arrow thread

 

haha...

I do ask a lot of questions... and when tfox and several others grace us... I tend to listen.

 

Haha, I'll have to show this to my wife, she'll get a good laugh.

 

Don't expect the same result.

 

I'm looking at a similar set-up. What spine are you using?

I'm shooting a 70 lb, 29.5 inch Z7x and was worried if the .300 FMJs cut to 29 inches are enough. Have any thoughts?

 

I love Gold Tips. I shot a lot of arrows last winter at sparrows and black birds on frozen ground, trying to bust one up just to see how tough they were. I never did hurt one. Probably not the smartest thing to do but.....I wanted to see what they would take. I'm sold on them.
You're right there between a 340 and a 300. I like the XT hunter series for the money, a good compromise between quality and price. With the 340 you'll be able to get a better FOC. You can also go with a gold tip kinetic 300 with a 10.4 GPI if you just want to go with heavy arrows, which it sounds like you do.
As far as sound, a heavy arrow is a heavy arrow no matter what its made of.
For what its worth, I'm no expert.

 

I am shooting a 400 spine but I am only at 57#. You probably need to be shooting the 300's

 

Muzzy, you should be able to shoot 340's if using a release. If shooting fingers you will most likely need to go with 300's.

Assuming a 29" or so arrow.

 

The high foc only becomes an issue with spine if you're borderline to begin with.

 

I'm going with atleast 300s.

Do you think 300s are enough spine for that set-up, or should I look into different arrows that come in more spine (ie, .250 or .280)?

I'm just worried that I'll be underspined with 225 gr up front.

 

Ebay.

~Bill

 

I think the 300's should be fine assuming you're shooting a moderately fast bow and not one of the 370 fps bows.

 

Yeah, I'm shooting a Z7X which I think is IBO 330.

Thanks for your input.

 

If I understand this correctly, an aluminum arrow will slow down my bow speed, but it will make my bow quieter? What impact does it have on kinetic energy? As a newbie I am always torn between speed and power. I initially thought I had to be blazing fast, then I looked up a chart and it said that the kinetic energy you need is about 41 to kill a white tail. By my last calculation I'm around 72. So would switching back to aluminum maybe slow me down a little, but give me a quieter bow?

 

I went to Kinetic Energy and Momentum Calculator and weighed my arrow with broadhead on it and I was at 443.6 grains. My bow speed last time I put it through the measurement device was 276. That gave me a KE of 74.95934693877551. I assume I am adding this right of course. I used my scale from reloading. I went ahead and calculated my FOC also and got 10.50420. It is truly amazing the amount of science that goes into archery... I honestly thought, stick, string it's been used for thousands of years, how complicated can it be lol.

 

The added weight will in many cases increase KE, but at some point it will slow it down to the point that KE starts to drop again. You have to know the capabilities if your bow to figure out at what weight you have maxed your KE.

 

With today's bows you would need to have an extreme arrow weight before seeing the KE start to drop...

 

Well over 1000 gr.

But there is so much more to penetration potential than just ke and momentum.

As for a minimum ke to kill a deer with an arrow. There is no such thing as a minimum ke to kill with an arrow as an arrow does not utilize ke to kill. Arrows cause massive hemorrhaging that either cause an animal to bleed out or lose air. Ke is just a potential penetration indicator that really isn't correctly used for that either as momentum is a more accurate indicator. That's not to say ke doesn't have it's place.