Loading .270 without the rifle

Ralt71

Handloader
Jun 6, 2025
318
348
Hello,
I've got a good one my Dad got me into last week. A friend of his bought a new rifle (Ruger American) in .270 and Dad offered me up to reload some rounds for his buddy. I won't have the gun here to test. I did get a measurement on the lands using a modified case and whatever bullet my brother had (he is supposed to let me know what it was soon).

here is my question. How would you approach loading for a rifle you don't have on hand to measure out, test, and dial in?

second part.. what are some solid .270 loads you all have used?

My last .270 load was as follows, but it was in a Winchester M70. 53.2g N160, WLR, Nosler brass, 130g AccuBond seated .035 off the lands CBTO.

It took a lot of playing with this load to get it sub moa. I started out with 140g and stepped down to get it to calm down. Because I had so much testing (3 pages of notes in my reload notebook) I am apprehensive about this load (or any) without the rifle here.
 
I'd wait for the rifle . I'd be worried about making ammo and having to pull it apart . making ammo is fun , pulling it apart , not so much
 
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