rem 300 ultra mag
 

I'm loading 180 gr scirocco bonded I would like some input as to what powder? I've been told RL25. I will be hunting elk with a posibility of a 300 yrd shot, what say you.

RE: rem 300 ultra mag
 

Be careful with the scirroco, builds pressure much quicker than say a Bullistic tip or partition. I could go up to 97gr H1000 with partition but had to stop at 93gr with thescirroco. I went thru a box, and never could get them to shoot. I might try a faster powder like RL22 or 7828, maybe H1000. RL25 is the ticket for 200gr bullets like the accubond.

Hey, give it a try. Let us know how it does.

RE: rem 300 ultra mag
 

The scirocco shot very poorly in both of my 300 ultramags as well.They also left a great deal of copper fouling in the barrel.I am now using the 180gr tsx.I did my finalpoint of impact checksthis morning and the result was a 5/8" group with each rifle.

RE: rem 300 ultra mag
 

This link has a variety of loads. These are not necessarily from a reloading manual so you may want to verify with a published manual before trying.

http://www.reloadersnest.com/frontpage.asp?CaliberID=62

The Retumbo load for the 200 Grain Accubond was extremely accurate in a friends Model 700 with a custom barrel.

RE: rem 300 ultra mag
 

I've been searching for info to reload for RUM myself. We had a 3 day long range rifle shoot a while back and I talked to the guy tonight who won most of the money with his 300 RUM Remington LSS that has a 26" barrel that I understand has a 1/10 twist. He was shooting against people who were also using the heavy barreled varmit rifles. I saw his 200 yrd. group with 3 shots touching. He also took an elk last year at 736 yards dead center in the shoulder and had 86% bullet retention. Uses the 165 gr. Scirocco with 92 gr. RL22. Told me that puts it out at 3300 and any faster he starts loosing accuracy. Still very fast. I'm going to try it myself!
Good Luck

RE: rem 300 ultra mag
 

My buddy shoots Retumbo with 180 Scirocco out of his 300RUM Sendero with good success. Not sure what charge he is using though.

I tried the 150's in my 7mm Rem Mag.and they were not as accurate as other pills in my rifle. However, I did not work on load development much either. I'm gonna try the Accubonds this year.

RE: rem 300 ultra mag
 

If 300 yards will be your max you don't need to load the 300 RUM to the gills. You could use any of the following H870, IMR7828, RL22, H1000, or RL25. I think in the 180 gr range H1000 will probably give the best results.

RE: rem 300 ultra mag
 

If 300 yards will be your max the 300win mag or 300wsm would serve just as well with less recoil and longer barrel life.

RE: rem 300 ultra mag
 

Not jumping on you or anything stubble, but do you expect the guy to go out and sell the gun cause you see less recoil and longer barrel life in other guns? I guess the poor guy came asking about powders and ended up hearing people telling him he could do better with a different gun.

RE: rem 300 ultra mag
 

While I do not expect the guy to sell the gun once he owns it(although many people seem to be doing so with the ultramag cartridges),I am merely pointing out that there are more suitable cartridges for those conditions.Perhaps by doing so,I can prevent someone else from buying a cartridge that they will regret having bought in the first place.You have to remember that I own two 300ultramags myself,and I am very happy with them.As such ,I am not knocking the cartridge,but rather suggesting that it is not the best choice for many applications.

RE: rem 300 ultra mag
 

I understand that but the guy asked what powders?

RE: rem 300 ultra mag
 

Hey guys thanks for all the info, I like this site, I found that 92 grs of R22 seems to do well in my 300rum with the 180 gr scirooco, I shot a nice 1/2 inch group. I did not check the fps, should make a good elk getter. I loaded some 150 seira's they tend to explode a lot in and exit, is there a great bullet for deer that won"t blow em up so bad , in South Dakota out on the praire long shots are common , so a load to reach out and touch em , but not disintegrate, any input will be appreciated thanks gentelman ,Fishead

RE: rem 300 ultra mag
 

I really think you should considera 165 grain bullet for long range shooting with an ultramag. The 165 velocities are still 3350 + Fps and the there are bullets out there that can stay intact at close ranges. The BC of some 165s are so much better that their trajectories will pretty much equal out with the 150s at 500 yds. The barnes triple shock with .505 BC would be a greatchoiceif your gun shoots them accurately.

RE: rem 300 ultra mag
 

MAN!!!!! I cant believe I got in late on this one.........another classic, Stubble and Bigcountry goin at it about recoil and "better suited cartriges" !:D Anyway.......From what I've seen in testing my 300 RUM the H-1000 gives me great stable results, But Im pushing a 180 gr Accubond. I think I will stay with the bigger bullets considering any animal that I would actually use it on would be Bear/Elk size game. Besides, I can push my 180 gr to 3250 with a mid range powder charge (hopefully) extending barrel life.

p.s. hey stubble.....about your comment on people selling their RUM's, did you know Bigcountry got rid of his???? I think he should abstain from replying to 300 RUM threads since he doesnt even own one anymore! :D

RE: rem 300 ultra mag
 

Mossyya finally got tired of fetching yourarrows eh?:D:D
Well those bear and elk shouldn't go far with you behind the gun.
Just Some advice..So Read Carefully:D
Don't Drop The Gun Outta The Dang Tree...
Especially when your KIDS ARE WATCHING...