Anyone got any suggestions for .300 Remington Ultra Mag loads.

[koger]

I have a friend who inherited a 700 BDL in 300 RUM. He has a hard time finding ammo, but has 100 rounds of brass, wanting to know a good load for 165 and 180 gr bullets. I know Retumbo, H1000, H870 would probably be good powders, I don't have any of these. Just trying to help a buddy out with getting him started loading for deer/elk hunting with this rifle. all feedback appreciated.

 

[MasterYoda]

H1000
Cci-250
180-220gr

 

[Orr89rocz]

Just go to hodgdon they have data. Retumbo would be great

 

[Rick300]

+1 on Retumbo

 

[Mike Kohout]

Mine likes 94.0grs Retumbo with 195gr TMK's or ELD-X and Rem 9 1/2M 28" barrel. Just a touch under 3000fps. with good SD and ES. Start lower on the charge to be safe.
Mikey

 

[kyotekiller25]

H1000 with 200g ABs at 3100fps were hammers and very accurate from an old LSS I had.

 

[RGRobinett]

I have a friend who inherited a 700 BDL in 300 RUM. He has a hard time finding ammo, but has 100 rounds of brass, wanting to know a good load for 165 and 180 gr bullets. I know Retumbo, H1000, H870 would probably be good powders, I don't have any of these. Just trying to help a buddy out with getting him started loading for deer/elk hunting with this rifle. all feedback appreciated.

Lacking any/all of the above, H-4831SC, or, regular granule, should provide excellent groups and enough velocity that the bullet of choice will not bounce off of an elk. RG

 

[WAMBO]

With 165-180 grain bullets definitely go with H1000, great accuracy and velocity with the two I had.
Retumbo will give higher velocities but you do use more of it.
I have used 4831 with the 165's, shot them at 3400+ fps with good groups.

 

[STOMP442]

H-1000 and a Berger 210 is an extremely accurate and deadly combo.

 

[Rick300]

Mine likes 94.0grs Retumbo with 195gr TMK's or ELD-X and Rem 9 1/2M 28" barrel. Just a touch under 3000fps. with good SD and ES. Start lower on the charge to be safe.
Mikey

Be careful with Retumbo. I used to use 94.0 grains with 200 Accubonds and then when I changed lots I blew primers out and trashed the brass. Had to reduce to 91.0 grains and never could get the speeds of that older lot.

 

[koger]

Thanks for all the feedback gents, I have some 1000 available at a LGS, believe we will go with that.

 

[Mike TackleBerry]

Here are the powders I use for my 300s with 220-245s grain bullets. N570/N568 are my go to powders for the Berger 245 LRHT, I like Retumbo for my 230 A-tips and H1000 and H4831SC for 225 ELDM and Berger 220 LRHT.
Retumbo
H1000
N568
N570
H4831SC

 

[Bill K]

Hodgdon's Reloading Data web or a good up to day manual.

 

[FeMan]

I had two and both liked H1000 with 185 and 210 Bergers.

 

[Dgd6mm]

My Remington 700 BDL .300 RUM loved H1000 and Retumbo with 180 Nosler BT bullets.

 

[ebb]

WC 872, US 869, RL33, RL 25. The OP mentioned H870, Hodgdon had run out of H870 just as the 300RUM was coming out, I so wish I had a stash of this stuff hidden away some where.

 

[Dgd6mm]

I built a load with WC872 and 180 core lokt. I harvested a couple of nice bucks with that round.

 

[46and2]

My last two barrels have both loved N570 and 230gr otm.

 

[ebb]

I shot some WC 872 with some flat base 225 grain Sierra hunting bullets out of a 338 LAP that was almost a BR sized group.

 

[Olspark]

My Rem 700 likes my lot of Retumbo at 92.5 grains using a Fed 215Mag primer pushing a 200 Nosler AB. My go to elk round.