starting loads for 300 rum

[stxhunter]

got the loading equipment set just need a starting point ive got some h1000 and retumbo will pick up some rl25 also and i'll be using 200grn accubounds

 

[41mag]

Your best bet for our area and conditions will probably be the H-1000 or Retumbo. Tim went the RL-25 route and it will get your velocity , but it had some temp issues that we found were just not compatable with our weather.

The H-1000 is working very well with his RUM with the 180, 200, and 210gr bullets. Very consistant velocities and great groups.

I am sure he will chime in, here in a little while.

 

[remingtonman_25_06]

My LSS liked 88g or 92g H1000 with the 200g AB. It also liked 95g Retumbo with the 200g AB as well.

 

[stxhunter]

thanks mike i'll hold off on getting any rl my dad likes it for his 7 mag

 

[stxhunter]

thinks i guess i should start out a couple of grns lower and work up to these thanks rem man

 

[remingtonman_25_06]

No problem. The 88g H1000 load is mild, but accurate, you can probly start there. The 92g load is around max in my rifle, but still shot very well. The 95g Retumbo load is also around max in my rifle, I'd start around 90-91.

 

[41mag]

stxhunter,

I will get with Tim on his loads today at work. As for the 25, it seems to be good for loads around the mid sized cases, but once you get into the UM size ones in our conditions down here, it don't take a lot of change to get the stuff to start jumping around.

Tim had an excellent load worked up with it and some 180's, and we were shooting it one morning with temps in the mid 70's. That afternoon, I took his rifle over to work on some hogs in one of their pastures, and bout locked the bolt up, with only about a 20 degree change. The case was noticably ruined.

 

[stxhunter]

thanks mike aperiate it

 

[hoghound]

Stx, This is what I have had pretty good sucess with in my 300 Rum all fired at 300yds in a stock 26" Sendaro barrel.

185 Berger VLD 97gr. H-1000 = 3400fps / 1 ragged hole
200 Nosler AB. 91.5gr. RL-25 = 3260fps / 1 ragged hole
210 Berger VLD 91.5gr. H-1000 = 3020fps / 1 ragged hole
210 Berger VLD 94gr. Retumbo = 3100fps / 1 ragged hole
220 Sierra MK. 91.2 Retumbo = 3000fps / 1" groups

RL-25 gave outstanding numbers 3263,3267,3261 with the 200AB, however this powder in this caliber is super temp sensitive down here next to sea level where we are. If you go with this powder then I recommend that you work the load up in the middle of August.

Hope this helps.
Tim

 

[stxhunter]

thanks tim

 

[ChasinElk]

Stx- I have had real good luck using 180gr Swift Sciroccos and 99.gr of Retumbo this load will average 3400 out of my 28 inch Krieger barrel and shoots in the .5's @ 100yds. It also performs great on Elk!!

 

[s.ferg]

I just bought a 300 um . I have been reloading for my 7mag and 25-06 for several years with great results.I love those accubonds as they are excellent on muleys and elk. My question when talking temperature is How does temp and elevation effect the zero, say zero in in 90 degree heat in Texas and hunt in 16 degree weather in Colorado. I need to work up a load for white tails in old mexico as well as muleys and elk in Colorado..

 

[hoghound]

Stx, This is what a 185VLD does to a piglit at about 200yds.

No mercy!!!
Tim

 

[stxhunter]

i'll have to try some of them havent had a chance to load anything yet to much work going on right now thanks