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+--- Thread: JP Barrels accuracy (/showthread.php?tid=21691)
JP Barrels accuracy - R2BRO - 07-22-2020
i want to know from those who really use the JP barrels on this forum, what is the observed MOA?
JP says its 1MOA or better, is it true, what do you get in practice and with what loads?
JP Barrels accuracy - A5BLASTER - 07-22-2020
The 18 inch I use to own, would hold MOA are better with everything factory but sst and wolf fmj's.
My best friend owns that barrel now and after 6 thousand plus rounds it's still moa are better with the factory rounds he uses. Belive he is useing eld-m's and fusion ammo.
JP Barrels accuracy - R2BRO - 07-22-2020
but one more thing i noticed about that barrel is there is no coating? its bad i guess?
https://www.jprifles.com/buy.php?item=JPSM6.5G-18L8R7
no nitride inside and outside coating? so any comments on that?
JP Barrels accuracy - A5BLASTER - 07-22-2020
R2BRO Wrote:but one more thing i noticed about that barrel is there is no coating? its bad i guess?
https://www.jprifles.com/buy.php?item=JPSM6.5G-18L8R7
no nitride inside and outside coating? so any comments on that?
Lil box up in the right cornor opens up the coating options.
Mine had the black Teflon finish, still doesn't rust.
All these coatings are over rated anyways, keep the barrel clean and give it a light oil wipe from time to time and it will never rust.
JP Barrels accuracy - R2BRO - 07-22-2020
but that black teflon is outside; however, what coating is inside?
(for example Faxxon offers inside and outside nitride salt bath coating, which i assume helps from corrosion greatly)
JP Barrels accuracy - A5BLASTER - 07-22-2020
R2BRO Wrote:but that black teflon is outside; however, what coating is inside?
(for example Faxxon offers inside and outside nitride salt bath coating, which i assume helps from corrosion greatly)
Your over thinking it sir.
Pic a barrel based on the length and gas length and profile you want and go enjoy it. Your not going to beable to tell the difference in chamber/bore wear and tear are rusting between a coated and uncoated chamber/bore.
Well not unless you fire thousands of wolf fmj's and treat your gun like hot stanky garbage and leave it out in the weather and your vechicle.
JP Barrels accuracy - R2BRO - 07-22-2020
makes sense
JP Barrels accuracy - KZero - 07-22-2020
R2BRO Wrote:but that black teflon is outside; however, what coating is inside?
(for example Faxxon offers inside and outside nitride salt bath coating, which i assume helps from corrosion greatly)
The barrel you linked to is 416R stainless; it's unlikely to need any coatings on the inside, a process normally associated with harder-use/high-volume-in-a-short-time types of use. Most accuracy-oriented shooters don't want anything inside their bores.
JP Barrels accuracy - Wethepeople - 07-22-2020
I've been shooting a JP barrel for about 3 months now on a hunting rifle build. It shoots sub moa consistently with Federal gold metal 130gr Bergers. Did so right out of the box. Have done little load development because I've been lazy of late and having too much fun with a new 6.5g pistol.
JP Barrels accuracy - Klem - 07-22-2020
R2BRO Wrote:but that black teflon is outside; however, what coating is inside?
(for example Faxxon offers inside and outside nitride salt bath coating, which i assume helps from corrosion greatly)
You can buy anti corrosion protection from manufacturers like Zerust which will end up cheaper than chemical coatings. Any chemical coating on the inside of a match-grade stainless barrel is likely to stuff it up anyway. By all means coat the outside in whatever you want but my advice is to leave the inside pristine and just clean and oil as normal. The inside of the barrel is the gun.
I use corrosion prevention cord when not in use.
JP Barrels accuracy - R2BRO - 07-23-2020
just ordered JP 18"! will just have to wait for it.
JP Barrels accuracy - biodsl - 07-23-2020
Congratulations! I suspect you will be happy.
JP Barrels accuracy - Wethepeople - 07-23-2020
R2BRO, Let us know how it shoots when you get it assembled.
I've shot a few other factory loads from mine. Eld-m shot just ok, around 1.25" were my best group. It liked 120gr. PPU nearly as well.. I want to run some 107gr SMKs thru it but I probably won't start load development until after hunting season is over.
JP Barrels accuracy - am4966 - 07-23-2020
R2BRO Wrote:just ordered JP 18"! will just have to wait for it.
Congrats I know youll be happy, just a FYI adding a coating to a barrel will effect the accuracy. Chrome Lining will especially and nitriding also even though it just changes the the barrel hardness and such ever so slightly. You could still have a sub moa nitrided barrel but imo it would have smaller groups if it was none nitrided.
I want nitriding for barrels that are going to be abused with hi volume shooting and not being able to clean on a regular basis.
My .02
JP Barrels accuracy - StoneHendge - 07-25-2020
I've had my JP 22'' for 3 years and it does 1/2 MOA with 123 Scenars when I'm having a good day and is sub MOA even when I'm not. You'll be happy!
JP Barrels accuracy - MikaS - 07-27-2020
StoneHendge Wrote:I've had my JP 22'' for 3 years and it does 1/2 MOA with 123 Scenars when I'm having a good day and is sub MOA even when I'm not. You'll be happy!
I have also 22", but i not get group like that. Usually just under MOA, best times half. 100grain given better groups, than 120-123grain bullets.
What powder you StoneHedge used?
JP Barrels accuracy - MikaS - 07-30-2020
![[Image: 14867423.t.jpg]](https://img.aijaa.com/t/00496/14867423.t.jpg)
My JP-barrel Grendel 22" what cut-öff about 1" and made new thread.
JP Barrels accuracy - FLshooter - 07-30-2020
Nothing against a JP barrel. But if Im going to shell out $500, Id rather spend another hundred dollars and get a Bartlein custom.Both will shoot accurately, but the Bartlein will shoot accurately longer.