H4831

Cooch

Well, I screwed up. Got some Hodgdon 4831 to reload 30-06 for the first time. I bought 168 gr BTSP bullets and now can't find data to support the load. Hodgdon's website has some loads but not with this bullet. So I have two questions.

1. Does anyone have a pet load using these components?
2. Is IMR4831 the same as H4831? I have data for the IMR but...

thanks in advance.

fishmasty

www.data.hodgdon.com

jonk

They are pretty close, and I'd think that for a start load the data would be CLOSE to interchangeable, but not the differences below. PSI vs. CUP just to make life difficult.

In any case their data for a 175 gr bullet is: 175 GR. SIE HPBT IMR IMR 4831 .308" 3.300" 54.0 2615 48,100 PSI 57.5C 2781 56,900 PSI

175 GR. SIE HPBT Hodgdon H4831 .308" 3.300" 57.0 2535 38,300 CUP 61.5C 2719 44,400 CUP

This would be safe to use as it is for a HEAVIER bullet than you plan on using.
You might even be able to bump up your loads a half grain.

bpost

The two powders are close. Hodgdon now owns IMR so the powders could become closer over time. The H-4831 powder is reported to be a bit slower than IMR 4831. the bullet weight is imporant to the load not the BT or SP. If you start low and work up a load you will have no problems. I would be hard to get enough 4831 into a case to cause a dangerous over-pressure.

sandwarrior

cooch,

Something to think about here and that is, "What rifle are you reloading for?" Either H4831 or IMR 4831 is too slow for a gas semi-auto. You will get too much pressure at the gas port and may damage your rifle. They both work great though, for bolt type rifles. I wonder if the Hodgdon website doesn't have either 4831 for 168's because of that.

Anyhow, you can take the next bullet weight of 175 gr. and start with the starting load there and work up. 57. gr. of H4831 or 54 gr. of IMR4831.

JustC

load manual

Cooch

Well, it is indeed for a bolt gun so I think I will try you load. This is for my Son in law and he doesn't do any long range stuff so I was just looking for something decent...I don't have access to the gun so working up a perfect load is out of the question at the moment.

And I understand the concept of loading manuals. I have 3 and they just don't have this PARTICULAR combination. i was hoping to simply borrow on the experience of others. But if the moderators are going to post such helpfull comments perhaps I should refrain from doing so?

Thanks for those who posted helpfull comments.

JustC

Sierra has it, just listed as 4831sc (same thing)

do a search on Burn rate charts. Then you can learn to interpolate the data from a faster powder and a slower powder, and figure out the correct charge range. That is how I do it.

maybe next time tell us you have load manuals, and which ones, then we can save time by not looking in those manuals. I figured you didn't have one at all. My bad

also, save this

http://stevespages.com/page8a.htm

336marlin

Think I'm using the 4895's for that bullet. The AAC-2495 or IMR-4895 producing same results as that's Accurate's version of 4895. Anyhow; JustC has it, anywhere from 50.3 as min to 61.3 as max(work up) for 2400 to 2900 fps velocity in a 26" bbl. Hope this may be useful.