STX B-liner .25cal with 34g jsbs accuracy test?

The accuracy of the A Liner and B Liner I tested wasn't even close to my original SmoothTwist barrel. Forget about a hundred yards...the accuracy at 50 yards was so poor that I ended up giving away the X Barrel along with the A Liner and B Liner to one of our members in New Mexico to experiment with...his accuracy was so poor that he gave them away to one of our other members up in Canada to experiment with...who is now in the process of building a rifle around it using a Boss breech block. Understand this was $400.00 worth of X Barrel and two liners that I just gave away to someone in disgust and disappointment, and then that person gave it all away also because it would not shoot as well as his original SmoothTwist barrel does! I don't believe our friend in Canada will see any better results than we did, but maybe he can try putting one of the slug liners in it and possibly get good results that way...time will tell. 

Sort of makes you want to run out and buy an A Liner or B Liner doesn't it? Sort of makes me wonder why FX would market something like this that performs so poorly...surely they tested these Liners before putting them up for sale? Or maybe they just needed to recoup some of the money they spent on the research & development and marketing? I surely will never know, but you couldn't give me a truck load of these damn barrel liners...unless I decided to sell them for tent pegs. And FYI I tested both with the .25 cal. 34 grain MKI Heavy and the 34 grain MKII Heavy, and also the 25.4 grain Kings...to no avail. A really bad experiment that cost me $400.00. 

Best regards, Chuck

P.S. The pellets I used in all my tests were twice cleaned, weighed to within a tenth of a grain, sorted according to weight, & lubed with Napier Pellet Lube...not many people go the lengths I do regarding pellet cleaning and weighing, but suffice to say the pellets used to test both of those X Liners were as close to perfect as possible.
 
Well Mike I hope for your sake that the .22 cal liner you ordered exceeds our expectations but I will be surprised if it does. By the way, our friend in NM tested the stuff I sent him on his Crown...as a side issue last weekend he shot .55 & .70 groups at 100 yards with his .25 Wildcat MKI with its original SmoothTwist barrel. I don't believe we are ever going to see that kind of accuracy out of an X barrel with either A or B Liners...the results with a slug liner are not in yet. However, here is a video that may help you during your testing when your new liner arrives...https://www.youtube.com/watch?v=izciL8eHagM

Best regards, Chuck
 
Well Mark I will be doing the same thing very soon. One of our brothers here recently bought a brand new Warcat .25 and also an A Liner as well - it comes with the standard SmoothTwist Liner in it. His intention was to send it to me so I could install a Huma reg and tune it for him to shoot the 25.4 grain Kings and get him the highest shot count possible while retaining the 45 ft lb factory spec. The problem is that he thought he would shoot it a few times before he sent it to me...that's when the pin fell out of the cocking lever linkage making it unusable. So upon my advice he sent it off the FXUSA for them to repair it under warranty before he ships it to me. Oh, one other problem he ran into before the linkage broke was he tried to remove the original SmoothTwist Liner so he could try out the A liner but it was stuck in there badly. I told him to let FX fix that problem too while they are at it. What a bummer for him...but his story will have a happy ending when I am done with it. I will share my results after I finally get the gun.

Best regards, Chuck
 
I’m also waiting patiently for news on the practical accuracy of both the B liner and the slug liner. My .22 Crown is now three weeks old and shoots like a dream. Best group was a 5 shot group at 80m that measured 16mm center to center. After tuning the rifle I consistently get below 10mm groups at 50m. Not with the18grain JSB though but with the 16 gr. And at 950fps, which is pretty maxed out. It won’t shoot the 18gr as accurately. 
 
I have an order in right now on a B liner to shoot Mk I .25 cal heavies (600 mm liner) for my son's Wildcat mk II. Should I be strongly considering cancelling that order based on the results listed above? He's already frustrated that the factory liner isn't shooting the heavies (mk II) very well. I suspect the lites are shooting better. Our goal is to have a gun that shoots very accurately at 50-100 yards. 

Please advise as I'm tempted to cancel my order for his gift-especially if it's going to result in him being frustrated...



Sean
 
I need to do more testing with the 25.39 at high velocity with the factory liner @100 yards. I thought these "A" liners were designed for the 25.39 and the "B" for the MKII's. Before Ernest tuned my .25 Crown The 25.39 and MKII's were pretty even accuracy wise at 50 yards but at 100 the lighter pellets would open up. I have shot .70" groups and below with the factory liner and MKII's when I do my part.

But the lighter ones at 960 +? nope. I have not set down though and really tried to make them group. When it warms a bit I will find a setting in the 880-890's and see how they do. I can't imagine the new liner improving on this.



Dennis 
 
SMH77, please give me a little time to get back to you with an answer to your question...I will explain why a little later on today...

Sincerely, Chuck

Sounds good Chuck-thanks for taking the time to share your experience(s) with us. If you prefer, you can PM me the details.

Sean

Chuck, I origanally asked about the STX B-barrel. I and others on this thread and in general would like to know how you would advise Sean. When you're ready please share with ALL of us.

Ed.
 
Ed,

So here's what I decided to do, and why. I did get a chance to speak with Chuck tonight on the phone (super nice guy, BTW-very helpful and friendly!) and listened to his experiences with the A and B liners he shot. I talked at length with Chuck and realized I really hadn't given my son's WC a fair shake at tuning the gun to squeeze out the best possible accuracy from it-that became apparent during our conversation.

In the end, I wanted to get my son a B liner to help make his gun more accurate (read = consistent) shooting the JSB heavy pellets. Since this was aimed at being a gift idea for him for a Christmas present, I decided to call up the dealer to see when the liners were going to be ready to ship to customers. The word they gave me was that they were being pushed out until Jan or even Feb of next year. Hearing that, combined with the feedback (Chuck's and other's, overall) made me decide to go ahead and cancel my order for the B liner since it wouldn't arrive in time to be a gift like I intended it to be.

Instead I've decided I should really make more effort to optimize the current setup I have for him to see if it can be dialed in to shoot better than it currently is-so that's what I've decided to pursue. In the meanwhile, I've decided to watch the forums to see other's feedback on how the liners perform. From what I can tell, it wouldn't surprise me at all if FX is delaying the shipment to better optimize the accuracy of the liners for the intended combination(s).

Anyway, I just wanted to share my $0.02 worth since I made reference to it above. Sorry to hijack the thread-hopefully these comments (and the context of the purchase) are helpful to understand why I've decided to hold off for the time being.



Sean


 
"Has anyone tested or know of a test of these liners with these pellets at 100 yards? Like to know how they compare to the A-liner with 25g jsbs..

Ed."

Hi Ed, sorry to have gone off on sort of a tangent on your topic here so let me answer your initial questions first...

Yes, I have tested both the A Liner and B Liner I purchased from AOA with both the JSB MKI and MKII 34 grain pellets, and also with the 25.4 grain pellets. Both A & B Liners shot so badly at 50 yards that there was no point in taking them out to 75 or 100 yards. So badly I was ready to throw them in the trash until a fellow member here offered to pay for the shipping if I would send them out to him to test on his Crown...which by the way came to him with the plain SmoothTwist Liner. His results were so disappointing that he in turn gave the X Barrel and both Liners to another friend of ours here on the forum to play with. 

Now to your question on how I would advise Sean to proceed regarding the .25 cal. B Liner he had on order... rather than give him any advise at all I simply informed him of the facts regarding my disappointing experience with the B Liner I received, and my fellow forum members' subsequent disappointing experience the the same B Liner, and let Sean make up his own mind about whether to cancel his order or not. For his own reasons he chose to cancel his order. And as of this writing I would discourage anyone else from making the same expensive mistake that I did.

However, there may be a happy ending to this story in the near future or maybe not...only time will tell. What I am referring to is the fact that I was contacted today by FXUSA via email in regards to my bad experience...rather than paraphrase I will simply copy and paste their letter here so all may benefit from it. These are the words of a gentleman expressing his company's deep concern and kind offer to rectify the problem to my satisfaction. Essentially they say I might have just gotten a couple of bad barrels! 

"Hey Chuck,

We are sorry you had a bad experience with the STX kit and A & B liners! In the future, please know that if you do get a bad barrel or gun from us, which does happen from time to time even though we try to keep our quality control as high as possible, that you can reach out to us and we are happy to help rectify the problem. If there is anything we can do to help, please contact us at [email protected] or call us at 866-639-0772 option 1."

Here is the first sentence of my response, which is more than enough to express my thoughts on the subject without adding anything further...

"Dear FX,

I appreciate your offer to "help rectify the problem" as you say… so I am willing to give it a second chance if your offer is truly sincere. If you send me a new FX SmoothTwist X Barrel upgrade with A Liner and B Liner to replace the ones I got from Airguns of Arizona, I will in turn test them extensively and give a completely honest appraisal of their accuracy or lack thereof."

So it remains to be seen as to whether or not FX sends me one of their new X Barrels' along with new A & B Liners to replace what they suspect were just a couple bad barrels, that somehow slipped past their quality control measures. Not many company's stand behind their products these days but I firmly believe FX will "rectify the problem" as they say...but time will tell. If they do nothing then I am no poorer for the experience than I already am. If they do replace them then I sincerely hope for their sake and mine that they are every bit as accurate as they have portrayed them to be. You know I am in business also, and if there is a problem with our work for a customer I am quick to solve it. Period! No questions asked, no delay, no excuses.

All the best, Chuck 

P.S. Ed, I waited until this late to answer your query about Sean to give FX time to answer my reply to them but nothing so far. 






 
Out of interest does anyone know what the difference between the A&B liners is? Twist rate? 

Also for anyone who buys the bare barrel upgrade. Although fx says you can use your original shroud don’t. The tread on the smooth X is longer and you shroud will float on the treads instead of locking up against the outer barrel sleeve. This will cause accuracy issues. 
1543977139_17949212675c0738b3377ac4.32028887_23B08FB0-21E4-47DB-9AF1-88287AD2757D.jpeg
1543977318_9985315755c073966857c52.67073644_B261897D-3FF1-465C-A691-164E739B9F2C.jpeg


Michael