HOO-RAH!! SHOUT out to Krieger and Sierra!!

[ShootDots]

If you have read my thread about the 150 SMK's and my 6.5 x 284, you know I had success and failure! The 150's shot great out of the 4 groove "conventional" rifling barrel, with a 1-7.5 twist. However, after 15+ rounds the bullets were coming apart and blowing up prior to getting to the target. After speaking with Tommy Todd at Sierra, he was perplexed and that started a ball rolling for an investigation at Sierra. Tommy called "Mike", the sales manager at Krieger, to see if there was a known problem with bullets blowing up from their barrels. I spoke with Tommy at the Berger S.W. Nationals and he gave me the contact info for Mike. I spoke with Mike and without A LOT of testing the culprit APPEARS to be: 1.) The length of bearing surface of the 150's coupled with; 2.) the 4 groove "conventional" rifling and the 3.) 1-7.5 twist, in conjunction with 4.) the speed of the 150s being pushed by the 6.5 x 284..
It does NOT appear to be anyone's (either Krieger, Sierra or mine following the twist recommendation) fault or problem. However, Mike. from Krieger, asked me to send my barrel back and they will replace it FOR FREE with the 5 R rifling, so the "blow-ups" cease! Does Customer Service EVER get any BETTER than that!!!

 

[Steve Ladino]

Very nice.....I'm not surprised

 

[cmillard]

Glad to hear. Krieger is a great company and makes great barrels. You will love that 5R!

 

[hogpatrol]

Glad to hear you got it worked out. Please let us know how the 5R and the 150s perform.

 

[ShootDots]

Glad to hear you got it worked out. Please let us know how the 5R and the 150s perform.

Will do!!

 

[kris bassett]

Very nice! Love to hear when companies step up! The firearms industry is full of great people and companies!

 

[nmkid]

Wow! That is above and beyond.

 

[JBT47]

Gotta love Krieger. Not sure why more people do not talk about Krieger’s 5R Barrels. I’ve owned about 10 of them and they were all fantastic.

 

[KenOath]

Certainly helps keep confidence high with that level of service..

 

[allen529]

Their 5R rifling was set up by Boots Obermeyer. He did their tooling and gave them permission to use the 5R label.

 

[nakneker]

It’s always nice to see good customer service recognized.

 

[boltfluter]

Krieger has always been the gold standard for customer service. Nothing more to say.

Paul

 

[johnfred1965]

That is great customer service! However, is Kreiger going to give everyone a barrel for these bullets, or is Sierra going to thicken their jackets?

 

[cmillard]

i think sierra has been having some issues with their jackets for a while. the 90s had issues with them coming apart and not making it to the target. BTW, my Krieger 5R is the most accurate barrel I have ever shot--6BR .236 bore 8" twist.

 

[ShootDots]

Well my "old" barrel was just sent off to Krieger. Now the wait starts whilst they make the other one. It is obvious that they not only make excellent barrels, their Customer Service is about as good as it gets anywhere!

 

[Mulligan]

If you don’t mind “splaining” to a rookie, why would 5R rifling be better in this instance than a 4 groove?
CW

 

[ShootDots]

If you don’t mind “splaining” to a rookie, why would 5R rifling be better in this instance than a 4 groove?
CW

The "squared off" edges of the "conventional" rifling BITES into the jacket with more vigor than the "rounded edges" of the 5 R does. They make more of a dent rather than a good cut into the rifling.

 

[Mulligan]

The "squared off" edges of the "conventional" rifling BITES into the jacket with more vigor than the "rounded edges" of the 5 R does. They make more of a dent rather than a good cut into the rifling.

Thanks, that helps.
CW

 

[sdean]

I wonder how many people that ever had a bullet not make to the target will be calling Krieger. Is Sierra now gonna put conventional rifling disclaimers on the box now. Just saying. Both are great companies but me thinks you got lucky Benjamin.

 

[1shot]

If you don’t mind “splaining” to a rookie, why would 5R rifling be better in this instance than a 4 groove?
CW

Additionally, with an even number of grooves, the lands present an opposing force equally against each other.
With an odd number of grooves, a land faces a groove.

Lloyd