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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cryonic treatment of rifle barrels.
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<blockquote data-quote="Northwoods001" data-source="post: 1873539" data-attributes="member: 108780"><p>I live in Wisconsin not far from where Krieger barrels are made. 20 years ago roughly I was considering purchasing one of their barrels for a build and called them with multiple questions, one of which was to ask if cryo-treating their barrel would void any warranty/moa guarantee if I sent it off to have that done.</p><p></p><p>The customer service lady that answered the phone put me through to one of the bosses in the cryo-treatment area, she said he specialized in the cyro treatment process. I had no idea they were already cryo treating their barrels.</p><p></p><p>I don't recall the guy's name I spoke with but he relayed Krieger did indeed cryo treat their own barrels in-house. He said they incorporated a 2-step process in that they cryo'd the barrel blanks before cutting the rifling and then again afterwards. The reason was through experimentation they saw a significant decrease in spoiled barrel blanks due to exceeding runout per their tolerance specification. It cut down so greatly on their loss of product due to that runout that they decided through industry recommendation to also cryo treat the tooling used for cutting the barrels and they saw a second significant gain in that the tooling would also last longer.</p><p></p><p>I never did buy one of their barrels but my gunsmith will only use Krieger barrels because of their straightness and he has never encountered one that didn't shoot extremely well. </p><p></p><p>Me, I never did buy their barrel but clearly it's working for them. Bear in mind this process was developed by NASA so I'm convince that regardless of anybody's opinion it works. I feel it's more of an issue of whether you can measure the results which is difficult to do unless you take a nominal barrel that shoots mediocre groups and do a before and after test. But even then, if you start with a barrel that has too much runout cryo treating can't fix that…..</p><p></p><p>My dad always said if you start with Sh$t you end with Sh$t so if you have a good barrel and want to squeeze out that extra bit of performance then cyro treating is a great option. I used to lap all my barrels and after experimenting and getting a barrel cryo'd the first time I realized I was wasting my time lapping. If you have a barrel treated and don't notice how smooth the bore is when cleaning it then you must have ran a jack hammer your whole life and lost the feeling in your hands….but that's just my opinion.</p><p></p><p>Good Luck and happy shooting!</p></blockquote><p></p>
[QUOTE="Northwoods001, post: 1873539, member: 108780"] I live in Wisconsin not far from where Krieger barrels are made. 20 years ago roughly I was considering purchasing one of their barrels for a build and called them with multiple questions, one of which was to ask if cryo-treating their barrel would void any warranty/moa guarantee if I sent it off to have that done. The customer service lady that answered the phone put me through to one of the bosses in the cryo-treatment area, she said he specialized in the cyro treatment process. I had no idea they were already cryo treating their barrels. I don’t recall the guy’s name I spoke with but he relayed Krieger did indeed cryo treat their own barrels in-house. He said they incorporated a 2-step process in that they cryo’d the barrel blanks before cutting the rifling and then again afterwards. The reason was through experimentation they saw a significant decrease in spoiled barrel blanks due to exceeding runout per their tolerance specification. It cut down so greatly on their loss of product due to that runout that they decided through industry recommendation to also cryo treat the tooling used for cutting the barrels and they saw a second significant gain in that the tooling would also last longer. I never did buy one of their barrels but my gunsmith will only use Krieger barrels because of their straightness and he has never encountered one that didn’t shoot extremely well. Me, I never did buy their barrel but clearly it’s working for them. Bear in mind this process was developed by NASA so I’m convince that regardless of anybody’s opinion it works. I feel it’s more of an issue of whether you can measure the results which is difficult to do unless you take a nominal barrel that shoots mediocre groups and do a before and after test. But even then, if you start with a barrel that has too much runout cryo treating can’t fix that….. My dad always said if you start with Sh$t you end with Sh$t so if you have a good barrel and want to squeeze out that extra bit of performance then cyro treating is a great option. I used to lap all my barrels and after experimenting and getting a barrel cryo’d the first time I realized I was wasting my time lapping. If you have a barrel treated and don’t notice how smooth the bore is when cleaning it then you must have ran a jack hammer your whole life and lost the feeling in your hands….but that’s just my opinion. Good Luck and happy shooting! [/QUOTE]
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