Retumbo powder

[wyomingtim]

This is the newer "Magnum" powder from Hodgdon. Does anyone have any info on reload data for a 180 gr. in the 300 WinMag? Their website only gives info for the 200, 220 and 250 gr. load.

<FONT COLOR="#800080" SIZE="1">[ 09-16-2002 09:50: Message edited by: wyomingtim ]</font>

 

[danr55]

Tim, I don't know the name of the powder, but I read a while back that Hodgdon was coming out with a new powder that was H-5070 or H 570 revisited. I don't know if this is it, but judging by the loads you say are given, I would not be surprised if the H-5070 had found a new home.

 

[Calif. Hunter]

I think it is probably too slow to work well with 180 gr bullets in the smaller .30 mags. It is suggested for use in the Ultra Mags, STWs and larger Weatherby calibers, if I recall correctly.

 

[danr55]

Judging from what I just read about Retumbo, it is H570 revisited. The burn rate is listed as being faster than H-870 and slower than H-1000.

Tim, It will work in the 300 Win. with 180 grain bullets, but I don't think you would like the results. It would likely be considerably slower than one of the 4831s or even H-1000 or IMR 7828. If you have your heart set on loading some, try it would 220 grain bullets. For anything you shoot beyond about 150 yards, you'll get better down range performance with the 220 than you do with the 180 grain anyway..

 

[Calif. Hunter]

How does Hodgdon number its powders? Faster than H870 but slower than H1000, equal to H570. You'd think if it was in the middle, it'd be equal to, say, H950. Just wondering....it must not be in relation to burning rate.

 

[danr55]

CH, If I remember correctly, the powders are numbered either by the application and the developement number, or just by the developement number. H570 would be the 570th or 57th attempt to develop what ever attributes they were looking for and H1000 would be either number 100 or 1000. I read a story about Hodgdon powder a long time ago and don't remember all the details. I do remember how they got started though... They bought several tons of military surplus powder and bagged it in paper bags and sold it as H-4831. That was the original 4831 and is significantly slower than IMR 4831. That's a very good reason not to mix the load data....