To me you need to consider both the precision and accuracy of you're entire set up, and the accumulative effects of both to determine the distance you can comfortably take a shot. That includes the gear and the nut behind the butt, the latter often being the major one. With the nut, you need to factor in consistency and ability to read and correct for the situation and conditions you are shooting. So field accuracy and precision are both variable and both decrease (in absolute terms) with range.
Now back to the original post. Bedding is not always the issue. For instance with my little 223 that I bought cheap because it's precision was 4" at 100m, which didn't worry me in the slightest for it's intended purpose of bowling a pig at 30m. But I wanted it to be quiet so it went to Gunworks without me even firing a shot through it, but I did get mudgripz to play at the range first. Robbie picked it up and demonstrated the flex in the stock by leaning on it. Anyway, I picked it up after getting it quietened and took it to the range and all the three shot groups were between 11-13mm at 100m. Now this was an eye opener for me as a pretty new shooter, with no coaching, who thought I'd be pushing to ever get even anywhere near 1moa. And that rifle, in it's flimsy plastic stock, still isn't bedded. But the changes in mass, recoil, and the stiffening effect of the over barrel suppressor on the thin barrel had a huge effect on dampening the harmonics in both the action and the stock.
And this, I think is part of what Tussock was talking about. Bedding may help, but it may not. Other things may help, or they may not. A proper diagnosis is required and Robbie just knew what the issue was likely to be through knowledge and experience.
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