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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Borescope of my 338 Edge crown after 500+ rounds
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<blockquote data-quote="CA48" data-source="post: 1765582" data-attributes="member: 21446"><p>I pulled my 338 EDGE AI, Brux 29" barrel at just under 2500rounds. The first half of the barrel was shot with a mild load at 2700fps with 300gr bullets and h1000 most of the second half was shot at 2800fps and probably around 100 rounds mixed in there with my N570 load at 2980fps. Up until 2400rds it would consistently shoot 3-4" 3 shot groups at 1000yards and in really good conditions even better. After 2400rds it would still shoot 5" 3 shot groups at 1000yards. At 2450rounds I shot a handful of 5 shot groups at 1200 yards and it still held right around half MOA in 4-5mph winds. After that I took it to 100yards shot a few 3 shot groups, they were around 5". I shot it on a few more outings then had the barrel pulled. Mostly never shot more than 3 before letting it cool, occasionally 5. This was with a bi-pod and rear bag.</p><p></p><p>Cleaning was what most would consider minimal. When I stopped seeing heavy signs on patch I would run a few more then call it good. I never tried to get the last bit of carbon or copper out. Just used non chlorinated brake clean and bore tech eliminator and would run a nylon brush and let the barrel soak at least 20-30min, never used any bore paste and cleaned every 40-50 rounds.</p><p></p><p>I've recently gone back to to bronze brushes I think they definitely get more carbon and copper out. Whether it's necessary to get that much out I'm not sure but don't think so. Also use bore tech carbon cleaner now vs brake cleaner. It would be interesting to look down that barrel now with a bore scope.</p></blockquote><p></p>
[QUOTE="CA48, post: 1765582, member: 21446"] I pulled my 338 EDGE AI, Brux 29” barrel at just under 2500rounds. The first half of the barrel was shot with a mild load at 2700fps with 300gr bullets and h1000 most of the second half was shot at 2800fps and probably around 100 rounds mixed in there with my N570 load at 2980fps. Up until 2400rds it would consistently shoot 3-4” 3 shot groups at 1000yards and in really good conditions even better. After 2400rds it would still shoot 5” 3 shot groups at 1000yards. At 2450rounds I shot a handful of 5 shot groups at 1200 yards and it still held right around half MOA in 4-5mph winds. After that I took it to 100yards shot a few 3 shot groups, they were around 5”. I shot it on a few more outings then had the barrel pulled. Mostly never shot more than 3 before letting it cool, occasionally 5. This was with a bi-pod and rear bag. Cleaning was what most would consider minimal. When I stopped seeing heavy signs on patch I would run a few more then call it good. I never tried to get the last bit of carbon or copper out. Just used non chlorinated brake clean and bore tech eliminator and would run a nylon brush and let the barrel soak at least 20-30min, never used any bore paste and cleaned every 40-50 rounds. I’ve recently gone back to to bronze brushes I think they definitely get more carbon and copper out. Whether it’s necessary to get that much out I’m not sure but don’t think so. Also use bore tech carbon cleaner now vs brake cleaner. It would be interesting to look down that barrel now with a bore scope. [/QUOTE]
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Borescope of my 338 Edge crown after 500+ rounds
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