Fans of the Impact Precision 737R actions will be an even bigger fan of the PROOF Research pre-fit stainless steel designed for the popular Impact Precision 737R action. PROOF's Impact pre-fit barrels will arrive threaded/chambered with 5/8x24 muzzle threads. This is a shouldered barrel that requires few specialized tools for install. They're offered with a variety of caliber, lengths, and twist rates in stainless steel..
* These Proof Research/Impact Precision 737R pre-fit barrels are pre-headspaced. However, it is always recommend to double check headspacing with proper gauges before firing a rifle.
8 Reviews
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Proof PreFit
Awesome barrel
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Proof Research pre fit 6.5 PRC
Great looking barrel! Pretty fast shipping. Haven’t shot it yet, but I’ll report back when I do.
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Proof Research pre fit
UPS didn’t deliver . If they do, I’ll be happy to let you know what I think.?The three stars are for UPS. I’m sure you guys will rate five.
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6 dasher prefit
These barrels are so great. They’ve made a high quality barrel at a great price, this is my third barrel in Dasher and they all shoot light out. Will continue to use and order more in the future.
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737R Dasher prefit
Decided to give it a try. At the price point it was worth testing. This barrel is lights out right from the box. I bought 2 more! This is my second year in NRL and this barrel is a gamechanger.
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Impact Proof 6 Creedmoor
This barrel absolutely hammers. Sub 0.3MOA right out of the box, with my best groups at 0.1MOA with Berger 109s. These will be my go to barrels from here on out.
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6 Creedmor Impact 737R Prefit
Super pleased with this setup for my PRS rifle. It hammers. After Break In I am getting 0.3" groups, and I dont know that I can hold any better than that. I would definitely recommend to anyone interested in a super accurate rifle.
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Great barrel, would/will buy again
I got the 26" 6.5CM in Comp. Contour. Puts the balance point just in front of the magwell (MPA Comp chassis w/ bag rider, 1 front MPA weight, 737 action, and Razor scope). It clears the MPA chassis, but it definitely fills it up. If your using anything else I would measure twice. We'll see how it holds up over this next year, but right now, it looks like I'll be buying another when I burn this one out.
