I have one as well. It has come in handy quite a bit. Having it paired to my iPhone is nice for using the map features as well. I think it is well worth the cost.
I would recommend the 230berger as well. I don't have a combo on that since I am currently using the 215. You could definitely try loading them at mag length, but don't be surprised if you have to load them longer to get better consistency. At 1800 yards, everything counts on getting a good...
All of this makes me want to go with maybe a win-mag when this barrel is done. I like the way my RUM shoots, but having to search so hard for brass makes it no fun.
I am using the following:
Berger 215 Hybrid
.040 off the lands
Remington Brass
215M Primer
87.2 gr of H1000 for ~3050 fps. My SD is a little high at 20 right now. Trying to get that down
Shoots right around .5 MOA
What state(s) do you hunt big game in most often?
Nevada
What is your primary long range hunting cartridge?
300 RUM
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Regarding your primary long range hunting cartridge choice above:
Do you use factory ammunition?
No
If so, which brand and load do...