Re: .308 AW case length to lands and Grooves
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rickp</div><div class="ubbcode-body">Gunner0812,
for some reason I can't pull up your post on this site, so I'll paste from the email notification I got with it.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gunner0812</div><div class="ubbcode-body">my 2-cents, based on my own mistakes... just make sure you keep VERY accurate and detailed notes, and save them. when i was working up loads i remember a couple times when there was data i didn't annotate and remember thinking more than once "damn, i wish i would have written that down". similiar to that, i would also caution about throwing in too many different variables such as different powder chages and different OALs. you might find yourself with too much data and actaully end up getting "lost" in all the numbers and end up not really knowing what variable made the difference good or bad.
"lastly, something to consider about doing this test at 400+ yards... the farther out you go, the more you introduce external factors that are not related to your actual loading variable. for instance, you shoot your 42 gr 5-shot group with no wind and it turns out pretty good. then you shoot the 44 gr 5-shot group with a little stronger wind and the group opens up a bit, you are gonna be wondering if its because of the wind or because of the powder charge. I prefer to do my testing at 200 yards, but YMMV."</div></div>
I agree with you. The reason I was planning on shooting at either 400 or 500y is because that's the distance I keep reading about. I read the further out you go the better data you get.
Now that I think about it, I wonder if that distance is more for BR shooters. The one's I've seen lock down their rifles on a very solid support device and I think that removes some the shooter error variables. What do you guys think?
R
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well I actually wrote that before I had a complete understanding of what exactly the "ladder test" was. after reading some detailed info about it, i went back and deleted my comment because it didn't really apply to the actual test you had inquired about. from what I found, it does seem that the farther out you can do that specific test at the more accurate results you will get. and since this test does not really account much for horizontal dispersion, my comment about the wind factor didn't fit either.
if there is anything I can stress, based on my personal experience, is do like you mentioned and try not to get too wrapped around the axle on all the tidious details of relaoding for accuracy. at one point i started getting so deep into the weeds and it made my head spin. i finally decided to focus on the things i could control without too much time/tools/effort, yet still seemed to give me acceptable accuracy. there is definately a difference in relaoding for bench rest style shooting, and reloading for PRACTICAL precision shooting.