Leshiy barrel clamp bolts
Ok, every barrel mounted in Leshiy will have a tight spot from the clamps. Just try to push a pellet through the barrel mounted in Leshiy. With 25cm barrel it is not a big deal because the clamping force creates an artificial choke but with longer barrels that choke is not located at the muzzle.
Wingman, do you think that a perfect barrel is even throughout the whole length and it is just a little bit tighter at the muzzle?
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It’s just me or maybe others wth 6.35 35cm LW barrels just do not care? It is really easy to check the presence of an artificial choke. Anyhow, even with that choke the gun can be accurate, e.g. R2.5.
No offense but you seem to be the only one having this issue. Have you lapped the barrel yet? And I agree with Keyser, if the head of the pellet is tight you may be deforming the skirt seating it. Wingman also mentions in a thread about opening the leade of the barrel so pellets seat with little force.
Please just check it. Do I need to make a movie to prove that? How much do you pay me if I am right?
As of the accuracy, it goes south after like 40 shots. It is quite ok when the barrel is clean. I am sure it’s a barrel problem. Honestly, I had like 7 of them (for Matadors) in 2 years period and they did not like JSB pellets at all. It was obvious that the barrels were not even in dimension when it comes to the internal bore channel. I am talking about .25 ones. I do not know how Ed can be satisifed with them. Maybe LW barrel blanks are fine but the ones produced for Matadors and my Leshiy are simply not perfect.
I have everything documented and I have tons of groups, not mentioning money and time spent on testing. It’s simply a circus with Ed’s LW 6.35 barrels.
Shooter there is no way that pinch clamp with 3 mm screw is creating choke on a LW barrel. The magnets will break if you tighten the screws too much. A more likely senerio for your accuracy issues comes from installing the pellet into the chamber
Theory and practice are different. I can feel a choke created by the mounting system. Ed mentioned me on IWA 2016 that choking effect occurs. This is why he changed the approach to mounting the barrel in R3. Just ask him, he is also an engineer.
How about that:
http://rs915.pbsrc.com/albums/ac351/rgb_1/chokecollar.jpg?w=480&h=480&fit=clip
The barrel’s walls are much thinner in 6.35.
Wingman, your barrel is different as it is BSA – it is a hammer forged barrel and the structure of the steel is different after the process than LW. Do we have any LW 6.35 35cm barrel users here?
I don’t have 350mm barrel (yet) but can’t imagine it could be ‘choked’ by this clamping system… no way! Leshie’s chassis is made of aluminium alloy and it’d compress / give-up way faster than steel barrel. imho. Trust me, I’m an engineer 🙂
(actually… that’s true)
My 350mm 0.177 LW barrel behaves the same … No chocking effect at the clamp point
Just pushed some pellets through my mounted 310mm BSA barrel with the screws done up tighter than they would ever need to be and there is absolutely no choking effect on my .25 bore. Just silky smooth the whole way through with a nice felt resistance through the last 25mm of choke.
Well, that is obvious :winkn: .
Screws go through the stock so must be some kind of pipe/vice system. Screws don’t put pressure on barrel directly, otherwise they’d not go through from one side to the other.
2 screws keep it on place.
How does the barrel get clamped? Is this a double bolt pipe clamp, or 2 screws that just apply pressure on the barrel similar to the LMT MRP barrel swap system?
Yes, in 25cm barrels it is not an issue, but I am talking about 35cm ones.
my both 250mm (.22 cal and .25cal) barrels are choked. when I push pellets through the barrel feels a resistance about 2 centimeter before the end. any resistance do not feel in the middle of the barrel.
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Checked my .177 .22 and .25 350mm barrels, actually tightened the screws slightly more then I usually do and there’s no extra resistance where the clamp is, marked my rod to see where the clamp starts too just for o make sure.