I have been shooting my bow for a little over a year to get ready to hunt with it this year. It is sighted in with field points and I haven't shot with broadheads yet. My question is, when I put the broadheads on, if they are the same grain as my field points, will I have to readjustment my pins?

You shouldn't have to adjust. However, there's a ton of factors that I could write a full page on, but that would bore you. You do need to shoot the broadheads prior to hunting with them though. If they aren't shooting the same as your field points report back with where the broadheads were missing and I can provide some more information on how to get them tuned to hit the same as your field points. Out of curiosity, what head are you going to be shooting?

I'm not real sure yet. Either the muzzy phantom mx 4 blade or the mx 3 blade. They're both 100 grain. I know ill have to shoot them, just worried about messing them up. I have group within a quarter at 15,25 and 35 yards now. Can I expect the same with the broadheads?

some fixed blade broadheads come with a training head in the same box.

I think I saw one like that when I was looking. Don't recall what brand. Another question is what about mechanical broadheads? I would rather use fixed, but if that's a better route to go I'll do it. Just don't know how much I can trust the mechanical ones. I'd rather resight the bow than spend hours looking for a wounded deer and losing it.

The Phantoms don't have a practice head enless you sacrifice one...the MX series may have practice blades or you can buy them! I shoot 125 grain Phantoms and 125 MX3's. The MX heads are real forgiving the others are pretty long profile which will amplify any tuning issues but if they hit correctly they are great heads! I have never shot a 4 blade MX but I may try some this year.Don't shoot a group with B/H's...if they are shooting good it could get expensive!!

Okay, now another question. Where to place the shot? With my rifle I aim just a little back of the front shoulder. Is this good or do I need to aim I little further back? Also, should I aim a little lower or higher to anticipate the deer jumping the string?

Really unless your shooting traditional ( longbow/recurve ) you don't need to compensate for drop with most of the compound bows because the speeds they are putting down. I've had deer jump my arrow before, so I just go ahead and shoot for their heart. The one time you try to compensate for the deer dropping I can guarantee it will jump upward instead of dropping.

Same place as with a rifle is where I aim. Just make sure you don't get too far forward and hit the shoulder bone. A rifle usually will go right through the shoulder. A lot of the time a bow will just wound the deer and that's no good.

On your BH's. You're going to have to sacrifice one of them to check where they're hitting. I would suggest buying either a practice head, or a replacement set of blades for hunting.

Here’s the best thing to do, practice with your field tips all you can getting your groups tight. Don’t worry if they are hitting the x; just concentrate on making a consistent shot. A month before hunting season put on your broad heads and adjusts your sight to your broad heads (regardless of what the guru’s tell you). Don’t put a field tip on until bow season is over with, that is if you have one bow. I only shoot field tips through my completion bows, and my hunting bows have not been shot since last season. I’ll take it out before my first hunting trip to make sure it’s still spot on.

if your bow is in tune there should be no difference , ir they do not hit the same place you prob have a tuning issue,,i use 125 phantoms & they hit exactly the same spot as field points.if there is a top quality pro shop close they can prob get you on track , ask on TBH , if you dont know of a good one in your area

Whoa wait a minute on that shot placement thang.... You need to visualize the shot in 3D. Your objective is to punch both lungs and possibly the heart. Depending on the angle and height of your shot, your target may not be behind the shoulder. If your taget is quartering you may be entering mid ribs. If you are positioned high in a tree stand......visualize in 3D.

My crossbow will shoot differently for target field points and broadheads. Broadheads for me shoot higher,sometimes 2-3" higher.

Ive had different results with different bows. I had an 06 bowtech tribute that was different with each broadhead and field point. My current bowtech destroyer shoots field points, nap hellrazor, thunderhead and nap bloodrunner all the same, no pin adjustment needed.

Like someone else said, if the bow is in tune there should be no difference in impact location between field pointd and broadheads of the same weight. Shooting groups with broadheads is asking for arrow damage.

Shot placement like was also stated picture 3D. Shoot for lower 1/3 of the lungs broadside tight to shoulder, quartering away shoot inline with offside front leg. Other shots, wait for one of the above.