^^^ as above. (Forget to refresh.)
^^^ as above. (Forget to refresh.)
4150 CMV is the ordinance steel that best handles heat and thermal erosion at the throat and gas port.
416 stainless can be more accurate and is usually used for precision rifles but has 1/2 the service life of 4150 CMV. Also when stainless barrels begin to show signs of reaching the end of its service life the accuracy opens up significantly more than 4150.
Per SOLGW Armorer course via T&E
Last edited by prepare; 10-28-21 at 17:49.
You won't outvote the corruption.
Sic Semper Tyrannis
It might be easier to make a stainless barrel more precisely, but that certainly doesn't mean that all stainless barrels are of good quality. The inverse is also true about chrome lined 4150. Criterion, as well as a few other manufacturers have the process down pretty well, but not at the level of a truly match grade tube.
Buy whatever you want, it's unlikely you'll wear it out unless you abuse it. Having said that, I wouldn't consider a stainless barrel for a pistol or SBR, since I'm not going to use those in a precision role.
Last edited by grizzman; 10-28-21 at 18:43.
Hunter of Gunmen 8541
Just another thought, I have an FN SPR 308 barrel that shoots sub moa and at times a bug hole gun. Gotta be good for 10,000 PLUS rounds, maybe 20,000 of slow fire 308 who knows. I never figured out why more military units did not use more CL barrels they way they shoot barrels out.
I just love love love my FN SPR. Its a beast.
PB
"Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"
I have 2 FN SPR’s and understand what you are saying. Mine are solid. The M24 SWS (Remy 700)sniper rifle is a little better maintenance wise over Win Mod 70 gun. Simpler. Chromelined can be very accurate if done right FN does know how to. The SPR was didn’t sell as well as FN would’ve liked.
Hunter of Gunmen 8541
I have a BCM SS barrel with about 2300 on it. First 1200 rounds was scoped off a bench with no much in the way of rapid fire. For the last 1100 rounds, it's worn a red dot and been tortured with all manner of drills. Many days of repetitive bill drills, trying to go quicker. Recently I have been thinking of scrubbing all the copper out to see if it can still shoot in the .5-.7 MOA range it used to shoot at.
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