Re: questions about 270win and reloading
Welcome to the site. The 130gr pills are great for the 270Win.
As far as the scale, I haven't used that particular scale, however, I had one that was a little touchy. First thing to do is leave it on for 20-30 minutes before you calibrate it. This will let the internals come up to a consistent temperature. Secondly, turn off the A/C fan while loading.
Measuring overall length is OK, but measuring the ogive length is better. You can do this with your calipers and a set of bullet comparators. I use the Hornady set.
The recommendation to set your initial length to just fit the magazine is exactly correct (as long as your throat isn't short, which is highly unlikely).
Do a couple searches here for OCW and ladder tests, this will answer a lot of the questions you will be having.
Good luck and keep us posted with your progress,
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