BLUE RIBBON LOADS FOR THE 300 REMINGTON ULTRA MAGNUM

24 August 2003, 04:14

Hi Folks,
While I'm waiting for the gunsmith to finish muzzlebraking and trigger jobbing(2.5lb pull weight) my new Model 70, I am going to start my load development.

I have the following components on hand:

Powders: IMR 4350
IMR 4831
Reloder 22
Reloder 25

Bullets: Hornady#30302 150 grain SST
Sierra #2145 165 grain BTSP
Combined Technology #51160 168 grain Ballistic Silvertip
Nosler # 30180 180 grain Ballistic Tip

Cases: 100 new Remington .300 RUM
Primers: Federal 215 Match
Federal 210 Match
Winchester WLR Magnum

The final load will be used on whitetails (some upwards of 200-225lbs liveweight), feral hogs and any particularly unlucky coyotes, groundhogs, bobcats,crows, and skunks at ranges from 40 yards to 500 yards.

Anybody have a blue ribbon load sitting around the old reloading room?

Also, in your experience, has the .300 RUM proved to be finicky and pressure sensitive or is it pretty much a straight forward loading proposition.

Thanks for the Input

Good Shooting,
HBB

24 August 2003, 05:56

ricciardelli

For the 150's:
IMR-4350 From 80.4 grains to 87.0 grains
Remington 9-1/2M Primer
IMR-4831 From 74.4 grains to 95.5 grains
Remington 9-1/2M Primer
RL-22 From 83.9 grains to 96.9 grains
Remington 9-1/2M Primer
RL-25 From 89.5 grains to 103.1 grains
Remington 9-1/2M Primer

but I preferred:
H-870 From 101.5 grains to 113.1 grains
Remington 9-1/2M Primer

For the 165's and 168's:
IMR-4350 From 77.7 grains to 84.0 grains
Remington 9-1/2M Primer
IMR-4831 From 78.0 grains to 92.6 grains
Remington 9-1/2M Primer
RL-22 From 79.4 grains to 94.8 grains
Winchester WLR Primer
RL-25 From 83.2 grains to 100.7 grains
Winchester WLR Primer

But I preferred:
H-870 From 100.2 grains to 111.0 grains
Remington 9-1/2M Primer

And for the 180's:
IMR-4350 From 75.3 grains to 82.0 grains
Remington 9-1/2M Primer
IMR-4831 From 74.0 grains to 90.0 grains
Remington 9-1/2M Primer
RL-22 From 76.3 grains to 91.9 grains
Winchester WLR Primer
RL-25 From 80.0 grains to 96.8 grains
Winchester WLR Primer

with my preference being the RL-22 loading.

24 August 2003, 10:00

sakofan

quote:
Originally posted by hillbillybear:

Anybody have a blue ribbon load sitting around the old reloading room?

Also, in your experience, has the .300 RUM proved to be finicky and pressure sensitive or is it pretty much a straight forward loading proposition.

Thanks for the Input

Good Shooting,
HBB[/QB]

I have found my Sendero 300RUM to be very agreeable, and fun to work up loads for.

Steve's loads are usually the same on my stuff.
I will tell you that RL 25 has proven lethal in mine, with 180gr. SST Hornaday's, Swift Scirocco's, Partition's,using 93-94gr.'s

The only hunting bullet that proved disappointing, was the Nosler BT's.

Good Luck!!..sakofan..

[ 08-24-2003, 01:01: Message edited by: sakofan ]

24 August 2003, 14:07

Richard Wayne

here is what i got to-day, out of my first ever reloading, Sako 75, 300RUM. 180 gr. nosler balistic tip -95 gr. RL. 25- 3258 fps. 180 gr.Nosler partition , RL.25 - 3252fps. Now here is what i got out of factory Rem's. 180 gr. nosler partition 3271 fps. 200 gr. nosler partition's 3017 fps. GO FIGURE???? Seem's i have a lot of homework to do before moose hunt.(less than 6 wk's) won't even discuss group's on the reload's, it seem's this gun just love's those 200 gr bullet's. groups were just over 1". C.O.L. was set at 3.6" (by manual) going to try 3.680 next. still leave 's a mile to land's. OH, well.