Browning A-5 Invector
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oneounceload
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Plenty. Look at Briley as they most likely were the OEM in the first place; also Trulock, Carlson's, and just about every other maker of choke tubes
fluffy
Member
invector
my older bps uses invector tubes.
there are available most every where ,and great deals can be had on ebay .
mostly on ebay,no one else will bid against you.
same for the older berretta tubes .can get them for $5 shipped sometimes.
my older bps uses invector tubes.
there are available most every where ,and great deals can be had on ebay .
mostly on ebay,no one else will bid against you.
same for the older berretta tubes .can get them for $5 shipped sometimes.
There's no way to know the answer to your question without more information.
When you say "improve the performance," what do you mean?
Do you want a tighter pattern than it has now?
Do you want a more open pattern?
Does your current pattern have holes in it that you want to correct?
Is the gun not shooting to the point of aim?
Other issues you're trying to correct?
If your question has anything to do with patterning and pattern density, you first need to pattern your gun with the loads that you will be shooting. That is ALWAYS the first step and without it you can't know what needs to change, if anything. You can't just rely on the choke restriction that's printed on the barrel/choke tube. There's not much that can be said, categorically, about how one gun or one choke will pattern. You must test it with the loads you will be shooting. Otherwise, it's a guess.
oneounceload
member
You need to remember that "Invector" chokes are NOT interchangeable with "Invector Plus".
Take the ammo you intend to use to your local trap/skeet type club and use their patten board to see how well your current chokes perform regarding pattern density. You will also want to check the gun for barrel regulation - POI=POA.
I prefer extended chokes in my guns that have them just from a viewpoint of knowing what choke is in there without having to remove it or stare down the barrel at the notches......that said, most OEM chokes aren't any better or worse than aftermarket ones. Only YTOU can determine whether they will do the job for you.
Take the ammo you intend to use to your local trap/skeet type club and use their patten board to see how well your current chokes perform regarding pattern density. You will also want to check the gun for barrel regulation - POI=POA.
I prefer extended chokes in my guns that have them just from a viewpoint of knowing what choke is in there without having to remove it or stare down the barrel at the notches......that said, most OEM chokes aren't any better or worse than aftermarket ones. Only YTOU can determine whether they will do the job for you.
I have seen some manufacturers claim they keep the shot string closer together. I was wondering if any of this is true? I guess without experimentation there is no way to tell. I was just thinking there must be some reason Browning went to the Invector plus, and if the Invector plus is an improvement over the original Invector is there a way to replicate that with an aftermarket replacement choke? I am probably making it more complicated than it needs to be. I am just wondering if one choke works any better than the next. For instance to say it a different way, are all modified chokes identical? I don't have a lot of experience with different Invector systems other than the original Browning Invector.
oneounceload
member
They went to the Invector Plus because the barrel dimensions are different - which is why the chokes are not interchangeable. The IP barrels are slightly more overbored. You can take your Browning and I'll take an identical one with the same chokes and ammo and we may or may not get the same results.
YOU need to see what your current chokes do with your intended ammo before spending good money on chokes that don't do anything your current ones do.
Manufacturing claims are just that - claims. There are some who claim using their ported chokes will reduce recoil - total BS. (Ported barrels are the same BS)
One brand I know does have a tighter core - Pure Gold - but that is, IMO, due to the way they label them, and one should go one constriction different for the desired results. (I.E., ordering a LM will give you M results)
This isn't rocket science; it is a hollow tube designed to constrict shot measured in .000's of an inch. Now some make a short taper, some a little longer; others have a decent parallel section, others do not. Does any of it make a difference? It MIGHT - key word being MIGHT - in your gun with your ammo.
YOU need to see what your current chokes do with your intended ammo before spending good money on chokes that don't do anything your current ones do.
Manufacturing claims are just that - claims. There are some who claim using their ported chokes will reduce recoil - total BS. (Ported barrels are the same BS)
One brand I know does have a tighter core - Pure Gold - but that is, IMO, due to the way they label them, and one should go one constriction different for the desired results. (I.E., ordering a LM will give you M results)
This isn't rocket science; it is a hollow tube designed to constrict shot measured in .000's of an inch. Now some make a short taper, some a little longer; others have a decent parallel section, others do not. Does any of it make a difference? It MIGHT - key word being MIGHT - in your gun with your ammo.
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I don't believe any categorical claims about chokes (at least not on production guns -- perhaps on mega-buck target guns) because I have personal experience that tells me that it comes down to individual guns/barrels, not brands.
Further on the subject of good patterns, I don't have a complete apples-to-apples comparison, but I've seen enough to make me believe the claims that lengthening/smoothing the forcing cone (not the choke, but the forcing cone at the end of the chamber) can reduce flyers -- I believe I've seen that result on my Auto 5, but can't prove how much of it was the Colonial choke(s) and how much of it was the lengthened/polished forcing cone.
All are absolutely, positively NOT identical. You can even have two that measure the same, and they may not pattern the same with the same shells/loads. I assume it's to do with barrel harmonics and stuff like that. Again, bottom line without any question, you MUST pattern your gun and your loads to know what's going on.
oneounceload
member
This is NOT high pressure rifle ballistics, barrel harmonics really do not apply - bore dimensions, concentricity, choke diameter and concentricity to the bore are all very important.
Could be, but when the dimensional measurements all say the restrictions in the barrel (chokes) are identical but the patterning board tells a different story, it makes me wonder what all else might be at play. Either way, BGD should PATTERN THE GUN, and take it from there.
oneounceload
member
Absolutely he should and why I said things like length of taper and parallel MIGHT make a difference with his ammo in his gun.......
Main thing to check for is POI=POA and density of the pattern at a given distance inside a given circle's circumference.
Main thing to check for is POI=POA and density of the pattern at a given distance inside a given circle's circumference.
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