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Message: <blockquote data-quote="jdinny" data-source="post: 204114" data-attributes="member: 875">as far as published max loads that's a starting point but you need to know every gun is different. I would learn to recognize pressure signs on the brass before going off what manual calls max load. . it will be a helluva lot safer in the long run. flattened primer, extractor marks, heavy bolt lift etc. every single gun I load for I start low go up in .5 grain increments until I find max pressure of my gun and that goes for every powder I shoot. I would call 3/4 group at 100 pretty good and really no need to change things. I also being in ND push everything with temp stable powder to avoid switching my loads up. you mention clover leaf pattern one thing I prefer to see in my groups I'm okay with a slight deviation Right to Left  which can be wind, trigger pull etc but if your loads are varying up and down I would look at my reloading technique that tells me there getting different velocities to be spread vertically at 100 yards. that goes for any distance if my vertical grouping is bad I will go back to the drawing board as that suggest your speed is varying anf speed varying is not good for long range applications.- - - Updated - - -if- - - Updated - - -if you think that chrono is on the fritz I would do a ladder test. you can find info with a quick google search but what you should see is a nice rise with each shot due to more powder. you will then find a flat spot where 3-4 charges all the same height. that is where you want to reload assuming its a safe pressure as you will be able to get away with slight deviations and not notice it. there is some excellent videos online about ladder tests and finding flats spots </blockquote>

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