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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with cleaning barrel
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<blockquote data-quote="emp1953" data-source="post: 2551067" data-attributes="member: 71817"><p>While at a range session with my SIG 970SHR in .270win I was shooting group after group of 1/2moa or less at 100yds. A coupla regulars there approached me and asked when was the last time I cleaned it good. I answered that I had not. They assured me that if clean the rifle would shoot even tighter. So they pitched in. Looked down it with a borescope and it looked like the inside of my grandfathers coal stove. Long story short, after cleaning I couldn't get under 1.5moa at 100yds. Same loads. One of these guys shot it before cleaning and duplicated my tight groups, and again after duplicating the larger groups. After around 30 rounds or so the groups again tightened up. It just likes to shoot dirty, so that's how I shoot it. I pull a patch through it once in a while just to say to myself that I cleaned it. I'm shooting 150gr Nosler partitions over 51.2gr of H4350, CCI200 primers, Federal Cases. .020 off the lands. I didn't expect that kind of accuracy out of the partitions. If I do my part I can regularly get 2" groups at 300yds. And the bullet performs great on whitetails out to my farthest shot to date, 605yds.</p></blockquote><p></p>
[QUOTE="emp1953, post: 2551067, member: 71817"] While at a range session with my SIG 970SHR in .270win I was shooting group after group of 1/2moa or less at 100yds. A coupla regulars there approached me and asked when was the last time I cleaned it good. I answered that I had not. They assured me that if clean the rifle would shoot even tighter. So they pitched in. Looked down it with a borescope and it looked like the inside of my grandfathers coal stove. Long story short, after cleaning I couldn't get under 1.5moa at 100yds. Same loads. One of these guys shot it before cleaning and duplicated my tight groups, and again after duplicating the larger groups. After around 30 rounds or so the groups again tightened up. It just likes to shoot dirty, so that's how I shoot it. I pull a patch through it once in a while just to say to myself that I cleaned it. I'm shooting 150gr Nosler partitions over 51.2gr of H4350, CCI200 primers, Federal Cases. .020 off the lands. I didn't expect that kind of accuracy out of the partitions. If I do my part I can regularly get 2" groups at 300yds. And the bullet performs great on whitetails out to my farthest shot to date, 605yds. [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
Help with cleaning barrel
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