Vudoo accuracy fall off

[Matt_3479]

Sorry, the "/s" on the end of my post means that I was being sarcastic. If it's working for you, don't worry about what the "experts" say.

I was joking buddy, no worries!! I can tell sarcasm off your post without the /s haha. Which is why I like/laughed at your comment!

 

[jsof]

If anyone cares to revisit this topic, I just sent a PM to Matt because his post made me decide to forge on with Greg Roman's recommendations for cleaning the Vudoo, and the last two times out, I have noticed that the accuracy is coming back strongly. Not quite 100% yet but getting there for sure.
I'm not shooting individual bulls again yet, but yesterday while setting a tuner up at 50 yards, every group but one was sub moa with several less than 1/2 moa. Once I confirm the best tuner setting, it will be back to shooting individual one shot bulls for score.
As many have stated, I find this odd, but results are results.

 

[DanCarey]

Gregory Roman, who says he's worked at Vudoo for several years, wrote an article called "A Guide to .22LR Barrel Care for the Precision Rimfire Shooter." It's available here https://www.thetruthaboutguns.com/a-guide-to-22lr-barrel-care-for-the-precision-rimfire-shooter/

In this article he makes the claim that a fully seasoned barrel is necessary for best accuracy and that specifically seasoning "takes at least 1,000 rounds" to do the bore from breech end to muzzle.

He goes on to asssert three things about barrels.

1. They typically shoot well when they are brand new, but still leave room for improvement.
2. Accuracy will fall off after 400-500 rounds and not improve until at least 1,000 rounds fired.
3. The barrel will then start to become super accurate and predictable after 1,000 rounds or more have been sent through it.

Roman claims that with partially seasoned barrels, that is to say prior to 1000 rounds, the shooter will experience flyers and velocity spikes, slower than average velocities, and larger SD and ES.

In short, his cleaning advice begins with seasoning the bore with 1000 rounds. Shooters must make sure a carbon ring is eliminated by use in the chamber area only of a nylon brush and C4 carbon remover. No brush should ever go through the length of the barrel. He says to only patch the bore every 400 rounds or so with C4 followed by dry patches.

According to Roman, once the barrel is fully seasoned with at least 1000 rounds, and his cleaning method followed, the SD and ES will shrink and so, too, will group sizes. In other words, he claims these cleaning methods improve the performance of the ammo itself.

Of course, Roman ignores the experience of RFBR and position shooters. BR shooters often patch between cards. For regular between match cleaning, many, if not the majority, of BR and 3P shooters use either a brass or nylon brush through the bore. They do this to maintain accuracy performance. Match rifle manufacturers also recommend regular cleaning, including the use of brushes through the barrel.

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Thats why they named that gun vudoo. LOL

 

[68Hoyt]

My vudoo ( bartlein ) does not like a fresh clean barrel ,at first it needed rounds to settle down and was very accurate , but accuracy fell off , I cleaned shot cleaned shot and it wasn’t as good as it once was , I found that accuracy would come back drop off I would clean and it would come back after a lot of rounds then drop off again , I finally tried just cleaning the chamber and a couple of patch’s down the bore , it goes right back to top accuracy , good luck with your search to what your rifle likes

 

[JimSC]

All 3 of my CZ's are similar. I have a 457 that I broke in with Roman's cleaning and have close to 2500 rounds through. Today at a ARA match I averaged 2325 in a 4 card match.

 

[skeetlee]

Im sure this has been covered as i didnt read all the responses. Almost every time i have a customer in my shop with this very claim its simple because of a carbon ring. Most everyone thinks you dont need to clean your 22LR I couldn't disagree more. @@ powder is filthy and it doesn't take long to develop a carbon ring. Get in there with a nylon brush and scrub that chamber. If it still doesn't work, then look elsewhere Lee Gardner Precisoion

 

[JimSC]

Im sure this has been covered as i didnt read all the responses. Almost every time i have a customer in my shop with this very claim its simple because of a carbon ring. Most everyone thinks you dont need to clean your 22LR I couldn't disagree more. @@ powder is filthy and it doesn't take long to develop a carbon ring. Get in there with a nylon brush and scrub that chamber. If it still doesn't work, then look elsewhere Lee Gardner Precisoion

if you read Romans blog entry you would see that the carbon ring is cleaned after every session. And the barrel is give a light cleaning as well. What he does not do is scrub out the seasoning.

 

[MrG52D]

JMO- A good barrel will come in after a good cleaning in 12-15 rounds. By good barrel I mean, a buttoned rifled, hand lapped barrel, like Benchmark, Muller, Shilen....... A cut rifled barrel will take considerably more rounds, until it worn in enough to take the sharp edges off the rifling, then its 12-15 as well. I clean between each target, including brushing the chamber, Not a deep clean, just enough to get most of the crap out. Either way, it only takes 12-15 rounds. Again, JMO YMMV