standsleeper

They do have a partially chrome lined barrel. It may or may not help with the heat damage. Chrome is almost impossible to get applied evenly, so it definatlyhurts accuracy. Yet another reason I didn't buy that A-bolt.


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bigcountry

Don't tell that to FN. Those FN SPR's are so accurate, you could shoot rocks out of them and get MOA performance and totally chrome lined barrel. I am still amazed when I shoot one 20 times that day and no copper whatsoever in the barrel.

standsleeper

I was only repeating what I was told by a person that I consider to be very knowledgable. I couldn't come up with that on my own. Most of the time I am full of #2

bigcountry

I was at FN mfg in Va. The engineer there said alot of people was concerned about thier chrome lined barrels as they used to do this with shotgun barrels alot. But he assured me, it can be coated evenly and they measure thier barrels with air gauges. So I understand where your comeing from, that you can mill something a whole lot more evenly than coating it.

trailer

I’d sure like to see how it’s done being that I work with metal and we have chrome items done all the time...

bigcountry

Give them a call. They are in Fredericksburg, VA. I wouldn't mind to see that myself. In fact, I wouldn't mind to see how even the AR guys do it.

standsleeper

[/align]I don't have a problem believing you Big. What I don't know about guns you could just about squeeze into the Grand Canyon.

trailer

As much as it interest me to see there procedure , I don’t think it would happen for a long time. Maybe they’ll have it on TV one day...

BTM

I got about 3,000 rounds out of my 22-250 M70 Stealth (blued steel) before accuracy started to fade a little. Since I mostly shoot ground squirrels, I could've easily gotten by with a .223 and saved a lot of powder. However, like an earlier poster said, if you're only going after coyotes you might as well go for the larger round (22-2500.

Roskoe

I have rebarreled enough .22-250's to create myself a storage problem for shot out barrels. The 3,000 round figure is pretty accurate, depending of course on how hot they were loaded and how hot you let the gun get when varmint hunting. Normal .223 barrel life is about 5,000.

This is using .5 MOA as the starting point and 1 MOA as the maximum allowable group size. I went to a Colt AR-15/M-16 armorer's school last May and they were saying that Colt considers the maximum barrel life of one their AR15 barrels to be 35,000 to 70,000 rounds. But their maximum group size requirement is something like minute-of-grapefruit