Accuracy issue complaint

[David Lott]

So a customer calls me and says he has a problem with his rifle and wants me to rebarrel it, so I said sure send me the rifle and I will take a look at it. Rifle arrives, took it out and shot it, sure enough it has problems but instead of selling him a barrel I will be selling him a chassis. Shot great once I put it into my foundation test stock.
I am purposely not going to mention the chassis that it was in but you can see for yourself the best deal always isn't the best deal, pay a little bit more and get a quality chassis and forgo these types of issues.

*** On edit that is not play that is flex *** action screws were tight and NOT bottoming out on barrel tenon.
also NOT an MPA product. We use, recommend and sell MPA and Foundation 99 % of the time.

 

[hafejd30]

I figured we had something coming based on the previous thread you started.

Now I have to ask. And you can pm me the answer and I’ll swear to die with it

What chassis caused the issue? I’m putting my latest rimfire in a matrix pro II and have seen similar videos showing slop with that chassis. Just wondering if that is the one under the tape?

Planning to rebarrel my B14R or both and trying to decide which ways to go in this process

 

[Shootin25]

I figured we had something coming based on the previous thread you started.

Now I have to ask. And you can pm me the answer and I’ll swear to die with it

What chassis caused the issue? I’m putting my latest rimfire in a matrix pro II and have seen similar videos showing slop with that chassis. Just wondering if that is the one under the tape?

Planning to rebarrel my B14R or both and trying to decide which ways to go in this process

No way that’s a MP II chassis… not nearly enough width both at the bottom, and top where the bridges attach. I’ll guess Aero based on the profile.

Not to mention, there are videos of DI testing rifles out back in a Matrix, with confidence. Cannot go wrong with it.

Edit: I’ve got zero slop in the MP II chassis. Purchased from DI raw and with the standard all aluminum butt stock. More rigid than an ACC Elite.
I had both now have one.

Pics because she’s sexy AF.

 

[Emerson0311]

So a customer calls me and says he has a problem with his rifle and wants me to rebarrel it, so I said sure send me the rifle and I will take a look at it. Rifle arrives, took it out and shot it, sure enough it has problems but instead of selling him a barrel I will be selling him a chassis. Shot great once I put it into my foundation test stock.
I am purposely not going to mention the chassis that it was in but you can see for yourself the best deal always isn't the best deal, pay a little bit more and get a quality chassis and forgo these types of issues.

It wasn’t just screws too long? Or no washers? I’m surprised your customer was not aware enough to notice slop like that.

 

[TheOE800]

It wasn’t just screws too long? Or no washers? I’m surprised your customer was not aware enough to notice slop like that.

Yep, gotta watch out for that front action screw.

 

[beetroot]

Isn't this why some people glass bed their chassis?
There was a thread a few years back about this.

With mass produced rifles and chassis it's inevitable some are not going to play well together, glass bedding is the only way to ensure you get a perfect fit.

However that video does show a lot of play.

 

[ma smith]

It wasn’t just screws too long? Or no washers? I’m surprised your customer was not aware enough to notice slop like that.

+1 That's exactly what a "mis-assembled" rifle looks like... ask me how I know...

 

[Emerson0311]

+1 That's exactly what a "mis-assembled" rifle looks like... ask me how I know...

#metoo

 

[David Lott]

I edited the original post to reflect it was flex and not play. Most times I use a Vanquish with weights to test on but this was a left hand so I used a Foundation that is modified for left and right.

 

[Marinevet1]

Is that blue painters tape under the barrel on the front of the forearm?

 

[David Lott]

Is that blue painters tape under the barrel on the front of the forearm?

yes it is,

 

[chevy_man]

I would have loved to see what was actually going on. There's no way the bolts were tight on anything to have that happening unless it's one of the mini-chassis stocks and the entire mini chassis was broken free.

I'd like to see what the chassis builder would diagnose it as. Wrong bolts? No washers? Inlet cut wrong?
Because there's no way I believe the bolts were tight to the shoulder to have that happen. They may have been wrench tight, but they weren't loaded in tension in any way.

 

[chevy_man]

I edited the original post to reflect it was flex and not play. Most times I use a Vanquish with weights to test on but this was a left hand so I used a Foundation that is modified for left and right.

Maybe it's just me, but that video shows nothing useful. It looks like it's loose and floppy in the chassis. I can go loosen my action screws and take the same video.

As you're the one with hands on, either take a decent video, or tell us which chassis is made of rubber.

Just drives me nuts all of the "we don't want to trash the competition, but we'll complain about them and make sure the community knows to use my preferred brands".

 

[David Lott]

I would have loved to see what was actually going on. There's no way the bolts were tight on anything to have that happening unless it's one of the mini-chassis stocks and the entire mini chassis was broken free.

I'd like to see what the chassis builder would diagnose it as. Wrong bolts? No washers? Inlet cut wrong?
Because there's no way I believe the bolts were tight to the shoulder to have that happen. They may have been wrench tight, but they weren't loaded in tension in any way.

Maybe it's just me, but that video shows nothing useful. It looks like it's loose and floppy in the chassis. I can go loosen my action screws and take the same video.

As you're the one with hands on, either take a decent video, or tell us which chassis is made of rubber.

Just drives me nuts all of the "we don't want to trash the competition, but we'll complain about them and make sure the community knows to use my preferred brands".

I understand your point of view, Not sure I have anything to gain, and I certainly do not want to bash a company and promote my favorite. I was not complaining rather showing what can cause accuracy issues that gets blamed on the ammo or the barreled action. Only reason I even brought up MPA was from the post asking about it. I'll make a better video to show what is actually happening but for sure I will not name the manufacturer.

 

[Emerson0311]

Maybe it's just me, but that video shows nothing useful. It looks like it's loose and floppy in the chassis. I can go loosen my action screws and take the same video.

As you're the one with hands on, either take a decent video, or tell us which chassis is made of rubber.

Just drives me nuts all of the "we don't want to trash the competition, but we'll complain about them and make sure the community knows to use my preferred brands".

Yes. I have private complaints about some significant members of the industry. I do not air them publicly. That is a choice. If I did, I would make names and show clear data about my issues.

 

[chevy_man]

I understand your point of view, Not sure I have anything to gain, and I certainly do not want to bash a company and promote my favorite. I was not complaining rather showing what can cause accuracy issues that gets blamed on the ammo or the barreled action. Only reason I even brought up MPA was from the post asking about it. I'll make a better video to show what is actually happening but for sure I will not name the manufacturer.

I guess I would have thought it was very obviously not a problem with your action. It's well known you make quality stuff.

My frustration is more towards the general attitude of mystery from gunsmiths here.

 

[chevy_man]

Yes. I have private complaints about some significant members of the industry. I do not air them publicly. That is a choice. If I did, I would make names and show clear data about my issues.

It would be nice for the community as a whole to know if certain parts don't play together nicely.

We can know that certain manufacturers parts don't necessarily play with another without bashing them.

 

[David Lott]

It would be nice for the community as a whole to know if certain parts don't play together nicely.

We can know that certain manufacturers parts don't necessarily play with another without bashing them.

My intention was not to bash rather highlight what can cause accuracy issues while testing on a bench as most people would, truth be told there is probably not any difference in accuracy when shooting off barricades that the chassis was designed for.

 

[Rod79]

I’ll go out on a limb and name some names here as my action/chassis has similar “flex.” I have a Solus action with a 26” MTU contour in 17” Solus comp chassis, the flex shown in the video is what I see with this setup on a bench, off a bipod, and if I twist the action right/left at the grip. I don’t know if this would show up in groups yet as I haven’t shot the setup for groups (in the middle of a move currently), but off a tripod on steel at ~3-400 I can’t tell….

 

[ma smith]

+1 It would be good to know if its a problem with bedding or forend flex, for example. Or if its a more complex problem like stacking of some barrel flex, some forearm flex, and possibly one or more of the other issues mentioned above.

 

[Rod79]

Seems to be just forend flex (for me), my action is torqued & tight with no play at the chassis in the action area. The 17” forend on the solus is a separate machined part and at 17” long with a bipod all the way out the flex is easily seen; part of me doesn’t like the flex in the system (up against KRG’s) but I also don’t think it will have any real effects on accuracy…. I still need to test so this is just hopeful hypothesis