Making heavy bullets work in a 300 Rum

[NickforElk]

I have an older Christensen Carbon Classic in 300 RUM and I love it. Light to carry, manages the Rum recoil well, it even has a reputation in my circle of friends as a killer and has not only harvested dozens of animals for me it has done the same in their hands as well as it is barrowed often. With 180 grn. accubonds factory ammo it shoots 1/2 MOA-ish (which is all I shoot in it now) once you feed it 200s or 210 ABLR or Bergers it opens up. With it's least favorite being the HSM 210 bergers that I could never get to group better than an 1"-1-1/4", even when I ran them out to 400 yard hoping they would "stabilize". I don't reload but would like to it's just with kids, work, travel and life makes me think I would drop the coin on the equipment, and it would all collect dust.

I run Kenton dials on a Zeiss 5 X 25 and am confident with them to 600 YDs but would like to push my shooting further and have been playing with hard dope and a kestrel to push my confident shooting to 800+. That being said running some heavier bullets with higher BCs would be nice. Any ideas, and if it is just reload, maybe some guidance on techniques on finding loads for heavier bullets that have worked for you in the past.

 

[WRO]

Had really good luck with the 208s Eldms, you’ll probably need to mess with seating depth a bit. Mag box length will become an issue at some point as well.


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[S1n1ster]

Do you measure ogive when you reload? You could start with the ogive measurement of some match Hornady factory ammo, then seat to the same measurement with the 208s as recommended above, or try to 220gr ELD X.
Also might be worth considering primer and powder choice, and cleaning your rifle if you haven’t. Cheers!

 

[Dennis]

I would shoot what it likes. Good bullet and accurate is a good combination in my view.