375 ultra mag.

graybeard 50 · 07-05-2005, 03:47 AM

I am trying to find data for reloading this round, any ideas? also, does anyone make a larger (325 gr. or better) solid bullet for the same? Thanks gb 50

Wolf killer · 07-05-2005, 07:52 AM

I have found some375-r.u.m.data in Nosler's # 5 reloading manual.
I have been useing H-4831sc powder, Fed-215 primers & 260-grain Nosler Accubond bullets. My rifle has been very easy to load for.
Sorry I can not help you with any solid bullet reloading data. You might find what you are looking for atwww.hodgdon.com

Good Luck,

Wolf Killer

Ridge Runner · 07-06-2005, 12:46 PM

here's a couple http://www.reloadersnest.com/query_all.asp?CaliberID=286
RR

graybeard 50 · 07-08-2005, 03:35 AM

thank's for the info. I'll check it out.

Scott Gags · 07-09-2005, 04:15 PM

Barnes has reloading data online under the products heading for the 375 UM up to 300 Grains including a solid and a Triple Shock with a .555 BC. Just click on products and scroll to the bottom of the screen and click on Reloading Manual, andpick page 633 at the bottom.

Camp Cook · 07-14-2005, 12:03 PM

I have had a 375 RUM for about a year now and have reloaded every bullet that I have ever fired out of it.

I have settled on 2 loads both with Nosler bullets.

1. 260gr Accubond with 103gr Reloder 22 powder for an average velocity of 3000fps.

This is 1 grain over book max but this load info was given to a friend of mine by a Tech at Hodgdon and I worked up to it very carefully. Excellent accurate load in my rifle. Don't use this data unless you reduce your powder charge by at least 10% and work up carefully. This load is safe in my rifle but may not be safe in yours.

2. My secondload is a 300gr Partition with 92grs of IMR 4350 for an average velocity of 2750fps.

Both will do anything that I'll ever need this rifle for. I'm going after grizzly/moose this fall and the Nosler Tech recommended that I use the 260gr Accubond load.