XCR-L break-in and recoil buffer damage?

Again, thank you John for the very valuable information.
It is greatly appreciated by me.

Your level of customer service is why myself and many others have dealt with and continue to deal with Wolverine.

Have a great weekend.
Bod
 
I finally took it to the range to break it in. Ran the BCG and the inside rails wet with gun oil. I'd also recommend oiling the block end of the piston where it connects to the BCG. I noticed lots of buff points where the contact surfaces polished each other on these. My shirt ended up getting sprayed slightly enough each shot to have thousands of soiled oil marks, which I didn't notice until the wife complained.

Something I noticed during the 3 hours or so I spent breaking in the barrel and then the action... The entire top rail, and moreso the front rails, were too hot to touch. Any plastic stuff would probably melt off of it, and I'm glad the BUIS are all-metal. The ergo rail guards made handling comfortable without gloves, I was really surprised. The barrel was so hot at that point that it burns on contact. I don't think I was close to cooking off, but sure was approaching it. Eject briefly (10 seconds) chambered rounds and they're almost too hot to handle... 49-52 degrees C I'd guess. Ended up putting around 400-500 rounds through it. Barrel was burning off the oil from the receiver.
 
Awesome info for a new XCR owner like me. I too lost the firing pin retaining pin. Surprised how easy that comes off.

Thanks for all the info.
 
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Jaydam said:
I finally took it to the range to break it in. Ran the BCG and the inside rails wet with gun oil. I'd also recommend oiling the block end of the piston where it connects to the BCG. I noticed lots of buff points where the contact surfaces polished each other on these. My shirt ended up getting sprayed slightly enough each shot to have thousands of soiled oil marks, which I didn't notice until the wife complained.

Something I noticed during the 3 hours or so I spent breaking in the barrel and then the action... The entire top rail, and moreso the front rails, were too hot to touch. Any plastic stuff would probably melt off of it, and I'm glad the BUIS are all-metal. The ergo rail guards made handling comfortable without gloves, I was really surprised. The barrel was so hot at that point that it burns on contact. I don't think I was close to cooking off, but sure was approaching it. Eject briefly (10 seconds) chambered rounds and they're almost too hot to handle... 49-52 degrees C I'd guess. Ended up putting around 400-500 rounds through it. Barrel was burning off the oil from the receiver.
Click to expand...
Is this with the light barrel? How rapidly were you firing it? Just curious.
 
Jaydam said:
I finally took it to the range to break it in. Ran the BCG and the inside rails wet with gun oil. I'd also recommend oiling the block end of the piston where it connects to the BCG. I noticed lots of buff points where the contact surfaces polished each other on these. My shirt ended up getting sprayed slightly enough each shot to have thousands of soiled oil marks, which I didn't notice until the wife complained.

Something I noticed during the 3 hours or so I spent breaking in the barrel and then the action... The entire top rail, and moreso the front rails, were too hot to touch. Any plastic stuff would probably melt off of it, and I'm glad the BUIS are all-metal. The ergo rail guards made handling comfortable without gloves, I was really surprised. The barrel was so hot at that point that it burns on contact. I don't think I was close to cooking off, but sure was approaching it. Eject briefly (10 seconds) chambered rounds and they're almost too hot to handle... 49-52 degrees C I'd guess. Ended up putting around 400-500 rounds through it. Barrel was burning off the oil from the receiver.
Click to expand...

Please remember that a hot barrel always accelerates wear, throat erosion will increase. Don't get alarmed as an odd session will not hurt her, but a "match" rifle shooter would be horrified with your report. Great rifles :)
 
So I just purchased a XCR keymod version. There is a spare parts kit available for this according to this thread?? Id like to buy one and throw it in my coyote hunting kit. Is this available as an online purchase or do I need to call the store?

Cheers!!
 
tavares86 said:
Is this with the light barrel? How rapidly were you firing it? Just curious.
Click to expand...

Heavy barrel. I did the barrel break-in slow. 1 round, 3 rounds, 5 rounds, 7 rounds, then 10, 10, 10. Cleaning in between, and oiling. After that I shot 100 rounds over about 20 minutes, and put it on the rack for a couple hours while I worked on another rifle. Later I put another 250-400 rounds through it before it reached the heat levels I mentioned. Towards the end I know I was pushing it. I used a magloader on 4 LAR mags (2 doubles) and that takes a minute to load or less, maybe. 40 rounds. And spend about 5 minutes shooting them. Not doing mag dumps but trying to place shots with a hot barrel.

Is the XCR-L capable of surviving the "1000 round torture test"?
 
scott_r said:
So I just purchased a XCR keymod version. There is a spare parts kit available for this according to this thread?? Id like to buy one and throw it in my coyote hunting kit. Is this available as an online purchase or do I need to call the store?

Cheers!!
Click to expand...

The parts kits for the keymod ones are not yet available. We hope to have that rectified very soon. Keep watching our website and they will be there as soon as we get them. If you're nice we might even let you folks know in here :evil:
 
Jaydam said:
Heavy barrel. I did the barrel break-in slow. 1 round, 3 rounds, 5 rounds, 7 rounds, then 10, 10, 10. Cleaning in between, and oiling. After that I shot 100 rounds over about 20 minutes, and put it on the rack for a couple hours while I worked on another rifle. Later I put another 250-400 rounds through it before it reached the heat levels I mentioned. Towards the end I know I was pushing it. I used a magloader on 4 LAR mags (2 doubles) and that takes a minute to load or less, maybe. 40 rounds. And spend about 5 minutes shooting them. Not doing mag dumps but trying to place shots with a hot barrel.

Is the XCR-L capable of surviving the "1000 round torture test"?
Click to expand...

It's not hot enough to cook off until you can actually see the barrel glowing red or possibly white. The XCR-L is more than capable of surviving the 1000 round torture test. As we have stated many times, as long as these rifles are properly maintained and probably lubricated they will run and run and run. After all the initial intent of these rifles wasn't for the civilian market.
 
I am considering getting a light barreled XCR-L keymod version. On the manufacturer's site they say that the "standard" 18.5 barrels are chrome lined. Mr. Wolverine, could you please confirm that the light barrels are also lined with chrome?
 
Grumpy Wolverine said:
The parts kits for the keymod ones are not yet available. We hope to have that rectified very soon. Keep watching our website and they will be there as soon as we get them. If you're nice we might even let you folks know in here :evil:
Click to expand...

So glad i didnt order a parts kit with my dlask adapter. Dodged a bullet there. When the keymod kits are available ill pick one up.
 
I purchased a Keymod model in 762x39 with the light weight barrel. It feels really well balanced and points well. I have performed the break in procedure as stated in the owner's manual. The gas valve is now set on 1 but I do not notice any reduction in felt recoil, is that normal? It cycles fine and ejection is fairly consistent.
Overall I must say I am very happy with this rifle. The magazine issues associated with this caliber are a little disappointing but the rifle is a blast to shoot and I have had no rifle related failures.
I think I will mount an optic, maybe a 1-4 with an illuminated reticle and play with it in 3gun or CQB. Eventually I would like to get the caliber conversion for 223 as well.
 
"The gas valve is now set on 1 but I do not notice any reduction in felt recoil, is that normal?"

You won't feel much difference in recoil, but the rifle should feel smoother. Especially the trigger.
If you're in doubt, adjust from 1 to 4, then back again. You'll feel a difference.

Most mag issues will break in with use. I've got 14 mags, number 8 is a douche. I can fire 7 or 8 rounds, then rounds 9 and 10, sometimes 7, nose dive and the bolt passes over.
It use to be mags 8, 9, &10, but the others are fixed. They were of the same batch, bought back in June (iirc) this year. I'm thinking it's the shape of the top spring coil, against the follower. I've been tweaking them a little and fixed 9 & 10.

I haven't had any problems with the other mags, they feed 100%.

Add to stay on thread topic, at 11000 rounds I'm still using the original recoil buffer. I bought 3 spare, I don't think I'll need 'em.
 
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I thought all xcr barrels were chrome lined. Contact wolverine they will know


To add to this topic. Im just over 700 rounds more now and factory buffer still looks new. I think the people chewing up buffers are running their gas too high
 
Lots of great information here and for that I thank John and Brent.

My question last question is......
What is the recommended barrel break in procedure ?

Lots of information out on the web however I'm looking for the correct way from the pros.

Thanks
Bod
 
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