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Well there are several different variables to your question. Those variables range from, will the deer react from hearing the bow string and run away causing your arrow to have bad placement or not even touch the deer. Another factor is what kind of arrow are you using, if you're using an aluminum shaft you wont have such a flat trajectory you get from per say carbon arrows. But one of the common myths in bow hunting is that you can penetrate more using an aluminum because it has more kinetic energy but for power you sacrifice distance. and aluminium shaft could penetrate a deer with a 2 blade broad head just as well as a carbon shaft, except carbon shafts don't lose as much velocity and fps as aluminums do. If you go to light a shaft you don't have as much KE. So stay in-between 7-14 grains per pound when choosing arrows. Bottom line is if you have a somewhat flat trajectory at 25 yards, your arrow placement is good, and you have a good broad head I can't see why not.
I hunt mule deer because im in Alberta and i 50lbs and it leaves a good blood trail and i have had a few arrows go through using a easton carbon n fused shaft. I don't see 10 pounds under that is going to much of a problem when killing deer. If you're still unsure check your fps for your 40lb compound and if it is above 300 fps for your set up you should be fine.
What else can I help you with?
Can a 25lb compound bow kill a deer?
A 25 pound bow might kill a deer at 10 yards, but it may not be legal in most states. A 35 pound bow is about the minimum you want to use and, at least in Indiana, it is the legal minimum.
When hunting which types of animals is it best to use a compound bow?
It is best to use a compound bow when hunting big game animals like deer or turkey, because of the speed and power of the compound bow. You will get a much faster and cleaner shot.
What is the best type of bow for deer hunting?
PSE Nova compound bow is high on the list of most deer hunters. The most important thing is to determine the draw and weight you need for your size and strength.
Can a 30lb compound bow kill a deer?
It surely can, but it will depend on the shot. In my country (Hungary), however, it is illegal to hunt with any bow, compound or reflex, with a draw weight below 50 lbs.
What pound compound bow do you need to kill a pig?
A 60 to 70 pound force bow should do the job. I would go with the 70 pounds personally because of the pig/hog's tough skin.
Can you go deer hunting with a 30 pond bow?
Yes, you can. Some states or provinces may require a minimum poundage for big game or small game that may make a 30 pound bow not legal to hunt with. Most states require a 35 to 40 pound bow as a minimum but not all.
How can you find more information about bow hunting deer?
One can find information about bow hunting deer from a number of different resources online. One can find instructional videos for deer bow hunting on YouTube. One can also find information on deer bow hunting on websites such as Instructables, HubPages, and Deer & Deer Hunting.
When does deer season bow begin this year?
Deer season bow begins on September 15th this year.
Are laser sites legal for compound bows during deer season in Illinois?
Laser sites are not used on a crossbow. The only thing that uses laser sites is a compound bow.
What is a renegade trophy bow?
It is a compound bow (as in bow and arrow).
Can you hunt deer with a bow in Scotland?
no
Predator TRS Compound Bow by Golden Eagle Ind worth and what type of quaility is this bow appx. age?
100 bucks ready to hunt, 15 years old, quality is good enough to kill deer with.
