sendero light proof barrel issues

I recently had a very reputable gunsmith tell me that the Proof sendero light contour barrels have issues with accuracy and also that they were difficult to chamber well. I am wondering if anyone using this contour has had issues with them or if you have had success with the sendero light contour I would appreciate hearing about it.

Thanks

I have a Proof sendero light barrel on my 7mm Rem Mag, it shoots great!
Half moa 3 shot groups are the norm, have shot some amazing 1/4 moa groups also.
Smith didn't say anything negative when he built the rifle for me but that was 8 years ago.
Maybe something has changed since then?

I don't know about that?

LRI built .300 Win Mag. Mantha reamer. 26" 1-9 Proof Sendero lite contour.

100 and 300 yard groups with 215gr Berger's on top of H-1000. Nothing has stayed on its feet after taking a hit and we shoot them a looooong ways out.

I've owned at least 25 Sendero lights. All have shot phenomenal with the exception of one. Proof made it right immediately. They don't machine any different than the Sendero. I've also had several senderos. I've seen no discernible difference in how they shoot

I have a sendero light last time I shot three groups at 300 yd. One was 11/16 1 and 3/8 and 15/16 with a 132 grain running 3620 ft per second. Then just a week or so ago I decided to do a cold board test at 300 yd and then a follow-up it was 1 in for the two shots. I don't see a thing wrong with sendero light.

I've had 3 Sendero lite barrels and two shot 0.25 MOA once tuned, but I'm struggling with this last one chambered in 280ai. It's a 0.75 MOA barrel but I can't seem to get it to shoot any better (tried 180 hybrids, 175 elite hunters and 160 accubonds) with RL23 and H1000.

i have a sendero light chambered in 22 Creed at that thing shoots lights out

A local smith (older retired machinist, does things the old school way) told me his only complaint with them vs a normal steel barrel is that they grow length wise if they warm up, so when he's running one on a live center to turn the tenon and thread he has to go extra slow or it will bind and no longer be true on his lathe. I've never had a problem though and love the barrels.

I've got a 30 Nosler sendero light…when it's as hot as it is in TX right now, you can only shoot twice without it walking a bit. During the winter that's not an issue.

It machined no different, but it's the only light profile I've done. Most folks want the full sendero profile. But I don't run them between centers either.

My experience with nearly 50 proofs has be extremely positive. Probably 1/2 of which were sendero lites. All but one have been super accurate. The one that didn't shoot was a 20" sendero lite chambered in 6.5 saum. It was a turd and shoot nothing that resembled a group. My experience, like shooter264, with Proof Research was awesome. They made it right and warrantied the barrel no problem. All this said I do know of several builders who have moved away from their barrels for reasons that may have been frustrating for their businesses.

I have had big name builders in the custom rifle game tell me. Proof has their .30 cal and 7mm CF barrels dialed in. They won't touch any of their CF barrels in other bore diameters.

I have a 6mm proof lite that shoots like garbage.

I have Proof Sendero Lights on a few rifles. All are as accurate as any other barrel I have ever run.

6.5mm @ 22" and two @ 26".
7mm @ 26"
.308 @ 26"

Here's a smoker group with a Sendero Lite contour.