UH what kind of ol cartridge length are you looking at with the 195 berger? Im just not a berger fan what do you think of hornady edl-x bullet? Just to ck anyone can answer my 300 rum is on a long action is the nosler 28 on a shorter action its case length is only a few hundred thousandths shorter so there shouldn't be any diff in action length?
I am still determining the cartridge length, but it will likely be just under 3.70" to keep it in a standard long action magazine box. The normal COAL for the 28 Nosler is 3.340".
If my numbers are correct for the Berger 195, having the bearing surface fully supported by the shoulder, the cartridge length would be 3.464" minimum and 3.712" maximum (NOTE: these numbers are not confirmed). Berger's load data is based on 3.499" cartridge length (195 Berger in the 28 Nosler) to chamber in a standard 28 Nosler. I'll likely go somewhere around 3.650" with a long throat to stay inside the standard length magazine box. I'll have the throat cut a bit deeper than standard for the 195 Berger.
One caveat, I want to find a cartridge length that maximizes the 195 Berger (BC=0.755) but also handles a few other 7mm bullets if possible:
160 grain Nosler Accubond (BC=0.531)
168 grain Barnes LRX (BC=0.550) (for states that adopt "no lead" regulations)
175 grain Nosler Accubond Long Range (BC=0.672)
I don't know much about the ELD-X but perhaps I'll add the 175 grain 7mm ELD-X (BC=0.660) to the list too.
What I have often thought would be interesting is to "zero" my rifle with the long range bullet, in this case the 195 Berger, then do a 200 yard sight-in using the turret dials for a standard Nosler Accubond (or another solid performing hunting bullet). I would normally carry the rifle loaded with the Accubonds for shots up to say 300 yards at the turret settings for that sight in. For longer range shots where you typically have time to laser the range, set up for the shot and dial in, I would slip in the long range bullets (195 Bergers) and dial in the shot.