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Rifles, Reloading, Optics, Equipment
Reloading
Vertical stringing
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<blockquote data-quote="greenejc" data-source="post: 1962837" data-attributes="member: 60453"><p>The reason I asked about where your fourth round went in relation to the group is because I have two 300 winmags in Remington 700's which will put three 180 grain Sierra Gamekings into less than 1.5 inches at 300 yards, and this is not a one-time deal. I've had both of them do it repeatedly. However, sometimes when I have to load the fourth or fifth shot, I change the position of the rifle on the rest, and with the same point of aim, it will give me an outlier. I'll get a 2.5 inch group, with the fifth round going back into the original group. I've gotten around this (most of the time) by using a Caldwell bag and resting the rifle close to the action, which seems to stop the problem, as long as I don't get caught by heart beat. I also use a squeeze sock under the butt stock to steady and rest the butt stock with my off hand. I do use a bipod on both rifles, and I re-zero for it just before going hunting, but it doesn't effect group size. Generally on my rifles, it will cause the group to hit about an inch higher at 100 yards, and maybe 4 inches higher at 400 yards. It doesn't effect the rifles with free-floated barrels or my varmint weight barrels, though. Point of impact with them remains the same at both distances, and I center punch steel at 600 yards with them from bags or a bipod. But I have experienced stringing just from a slight change in where the forestock was rested on the bags. It only showed up at 3 and 4 hundred yards, because the difference was so slight.</p></blockquote><p></p>
[QUOTE="greenejc, post: 1962837, member: 60453"] The reason I asked about where your fourth round went in relation to the group is because I have two 300 winmags in Remington 700's which will put three 180 grain Sierra Gamekings into less than 1.5 inches at 300 yards, and this is not a one-time deal. I've had both of them do it repeatedly. However, sometimes when I have to load the fourth or fifth shot, I change the position of the rifle on the rest, and with the same point of aim, it will give me an outlier. I'll get a 2.5 inch group, with the fifth round going back into the original group. I've gotten around this (most of the time) by using a Caldwell bag and resting the rifle close to the action, which seems to stop the problem, as long as I don't get caught by heart beat. I also use a squeeze sock under the butt stock to steady and rest the butt stock with my off hand. I do use a bipod on both rifles, and I re-zero for it just before going hunting, but it doesn't effect group size. Generally on my rifles, it will cause the group to hit about an inch higher at 100 yards, and maybe 4 inches higher at 400 yards. It doesn't effect the rifles with free-floated barrels or my varmint weight barrels, though. Point of impact with them remains the same at both distances, and I center punch steel at 600 yards with them from bags or a bipod. But I have experienced stringing just from a slight change in where the forestock was rested on the bags. It only showed up at 3 and 4 hundred yards, because the difference was so slight. [/QUOTE]
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