Lets all talk apples to apples

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Dain

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As I read through some of these threads, trying to turn myself into a "self educated" noob. I find allot of valuable information and that everyone here are very helpful and willing to share their experience and knowledge with the less fortunate of the community. My experience here has been wonderful and I thank you all for it.

Although I have learneallotot about the sport and what constitutes precision and what doesn't, I seem to have developed a felingeringng questions. And as I have always been taught "If I have the question so do others, who don't want to ask". In the quest to find the answer to these questions I have started this thread, and I hope it is just the start of a good thing and others will chime in with their questions. Some of the questions may seebizarrere oinsignificantnt, but they are important to aspiring precision shooters, such as myself.

1) When measuring a group should I measure from the outside of the two furthest bullets, or from the center of the two furthest bullets?

2) When loading my own bullets I use an automatic pdispensingencing scale that is accurate to 1/10 th of a grain. I confirm that measurement on a second "digital" scale that is also accurate to 1/10 th of a grain. Is 1/10 th of a grain accurate enough to obtain "true precision"?

3) When shooting through a chronograph what consistencynsitency should I be looking for in my speeds?

Thanks in advance for everyones help

Dain
 
Easiest way to measure a group is to measure outside to outside and subtract your cal. If your group measure .877 and you are shooting your 270 win the group will be .6
 
1) outer edge to outer edge minus caliber

2) 95% of the time, yes. Naturally as the powder load is smaller in a say... .223 Remington than a .308. then .1 is a greater over-all percentage of your powder load. ALL THINGS BEING EQUAL AND OPTIMIZED you will find that LONG RANGE precision gurus often load to the kernel of powder. With larger cases, shorter distances, and fewer optimized variables (which is where the majority of non-competitive and amateur competitive shooters sit) then .1 is fine. Me, I load to .1 SHort range BR shooters often use volume to measure powder instead of absolute weight.

3) that depends on how accurate your chronograph is and since the top dollar models can have accuracy to withing .5% (15 fps at 3000) I tend to use them for a mean average to create a drop chart and simply look at the results on paper rather then the number on the chronograph. This opinion is not without controversy.
 
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