BT-100 Question on POI

I have a BT-100 that I shoot, and it seems to be a rather flat shooting gun, for a trapgun. Does anyone else have any experience with them? I tried moleskin on the top of the comb, and it didn't seem to make any differance.

Thank you, John.

 

John, I've owned a BUNCH of BT-100s and they all shot at least several inches high at 35 yards with stacked beads. 5-7" on average.

If yours doesn't shoot high enough just add an adjustable comb and jack that baby up. Don't worry about the gap between the beads -- Harlan, Leo and countless other top shooters agree that perfectly stacked beads aren't important. I like a really high shooter so my beads have about 13 feet between them. It seemed odd at first but now stacked beads seem a bit strange to me. I only look at them when I first arrive at the post anyway.



-Gary

 

John
They tend to be rather flat shooting.

Mole skin should help unless you are unconsciously pushing into the gun to see the old sight picture.

Storm

 

Most good trapshooters would agree with your last sentence, John. If you don't have an adjustable comb and aren't ready to invest in one, you can always start with an adhesive add-on one. They are available in various heights.

On the other hand, if you do want to add an adjustable comb, Rod's Custom Stocks in Shelby, OH or Tron (Tronspace Gunworks / Joe Bowles) up in Michigan are two excellent sources who provide a great workmanship and quality hardware at reasonable prices.

-Gary

 

Thanks Gary,
I'll try to add a little more height to the comb, I don't want to add too much at once, for fear that it will really goof me up. The wind lately almost makes it seem like shooting wobble trap. No wonder people go south for the winter to shoot.

I'll try to relax on the comb Storm, maybe I am unconsciously bearing down on it. Thank you.

 

When the BT-100 first came out I sent mine to Browning on my way to Missouri Fall Hdcp, I talked to the Browning Man in chg. then and told him that it shot too low, he told he would find me one that shot in spec. a week later he told me not one in stock shot to specs, he did find me the highest shooting one and I sent it to Moneymaker, he set it up for me to shoot 20 inches high, well I shot it for a while and traded it, Burley Wilson owns it and will not part with it, Burley said that is the softest/highest shooting/ gun that shoots where I want it to and it is not for sale, I then told him I had it built up and traded it, Burley said well it aint for sale, just ask him when you see him about it.
Dr.longshot

 

John,

I suggest 35 yards, mount shotgun normally but aim like a rifle. Take at least 5 shots to be sure.

Your pattern will move roughly 32X the distance you move (or add moleskin to) your comb, and in the same direction. So your 1/8" moved the pattern up 32/8", or 2".

-Gary

 

Thanks Gary,

If weather permits, I am gonna try it again tomorrow. I will see if they have the pattern board area shoveled out, if not I will see what happens from 16 yards again.

Do you mean 2" or 4 "? I don't know if it is possible to tell a 2" change anyway.

 

John:

First off, if you pattern a shotgun taking several very carefully aimed shots, yes you can definitely see a 2" change. But it doesn't matter -- you don't need to see the change because you can bet your life that when you raise the comb 1/8" the center of your pattern will move up 3-some times that much -- IF you mounted the gun exactly the same way (same cheek pressure against same spot on comb) and nothing else was changed. But again, seeing the change, or knowing the exact degree of change from one setting to another doesn't matter at all.

The only thing that matters is whether the shotgun, as currently adjusted, puts the pattern where you want it to be. If not, keep adjusting and carefully patterning until it does. Then, for God's sake, LOCK IT DOWN TIGHT AND LEAVE IT THERE! And if that setting puts a gap between the beads, who cares? As long as the beads are both on the same vertical line, the beads don't need to stack as a Fig-8. Just learn to feel your cheek pressure against the comb and go back to that feel every time you mount the gun. You will notice that the gap is always the same and the targets will break if you look at them.

-Gary

 

I thought there were 2 ribs offered on the BT-100. One shot rather high.

 

Chipperite:

The vast majority of BT-100 ribs measure around .32" (just over 5/16") at the muzzle and about 0.59" at the rear peak when measured at the center of the barrel (or .625 <5/8"> when measured along the side of the rib, which is much easier to do). I once saw one that was noticeably lower at the muzzle but not by a ton (maybe .070" - .090" lower). Theoretically, all else being equal, that one should shoot about 2-1/2" higher than the others but I wouldn't bet much money on it (all mine with identical ribs don't shoot within 2-1/2" of each other, even with stacked beads).

But like I remind folks, rib height doesn't mean much if you're not hung-up on bead stacking.

-Gary

 

GW22
Some of the ribs on the BT100 are pitched down to about 1/8th of an inch of the barrel. The rib being very close to the barrel at the muzzle. The flatter shooting BT100's I think are 5/16 from the front edge of the barrel. As I understand the high shooting ribs were produced later and are harder to find.

 

I've seen a lot of BT-100s but I've never seen that. Please be sure to post a picture the next time you see one with the front of the rib just 1/8" tall.

-Gary

 

A rather lenghty explaination but I will do my best to keep it short.

Friend Terry Jordan suggested my wife and I go to the club, set the trap on straight aways, and start shooting the targets.

First we read the target breaks, and got the side to side breaks set in the middle by adjusting the comb. Then we began to raise the comb about an 1/8" at a time, reading the breaks until we either shot over, or topped all of the hits.

Then we lowered the comb down until we Soot Balled every target. I had to turn up longer posts for my BT-100 to accomplish this.

I had a huge gap (top picture) between the beads that actually did indeed bother me. Second picture shows what I now see after I installed my tiny Mini-Rib on the rear of my rib. It was made out of a piece of Delron I ordered from mcMaster-Carr. I first used a piece of wood to get my sight picture I wanted, then measured it and made the Delron piece to those dimensions. The height of the Delron ended up .375" ( 3/8").

Looking down the rib (second picture) (Rib is shown in the 3rd picture) gives me the look that I would see looking down the original rib, only without the center bead. I was going to knotch the Delron and install a little bead but found that totally unneccessary. I bring the gun to my cheek, make sure the bead is in the center, and on top of the Mini-rib, and call for the target...Sootballs whenever I do my job.

Dave