I have found that most load data is a guideline and it varies as much as 4 or 5 grains depending on the source of the data, your rifle will tell you when you have reached max. Most manuals will tell you to start 10% below max and work up slowly.
At the risk of dating myself when I started loading back in the 70's before the internet I mostly used a Lyman manual and it was pretty hot on the top end of most cartridges.
IMHO the old rule of thumb still holds, go slow and if the bolt is sticky your maxed out back down, there is not an animal alive that will notice the difference of being hit with a bullet doing 3400 and the same one doing 3325.
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The problem we have today is that the people who work for a living are outnumbered by the people who vote for a living.
We were all born ignorant but one must work very hard to remain that way.
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