Hodgdon 4831 SC vs 4831

[Woolsocks]

Simple question, is 4831 interchangeable (when loading by weight, not using a thrower) with 4831 SC? All the load data I can find just states 4831, but all the powder on the shelf is 4831SC

First time loading with this powder, just making sure.

 

[supercorndogs]

All the old data I have seen is same for h4831 and h4831sc.

 

[Tcorb734]

The data is the same because H4831sc is just H4831 short cut. This makes it much better when weighing powder charges. You can get more precise charges.

 

[Woolsocks]

The data is the same because H4831sc is just H4831 short cut. This makes it much better when weighing powder charges. You can get more precise charges.

but does the shorter cut affect burn rate?

 

[straightshooter1]

but does the shorter cut affect burn rate?

In the QickLoad app and on the Hodgdon burn rate chart, the burn rate for each is the same.

 

[Mike Casselton]

When 4831 SC was released, Hodgdon specifically stated the load data was exactly the same. They are the same powder with different kernel sizes to allow the SC to flow better through powder measures and to allow a more dense case fill.

I'll see if I can find my old Hodgdon manual that has this info.

 

[Mike Casselton]

This information isn't hard to find.

From Hodgdon:

Hodgdon H4831SC®

Buy H4831SC big game handloading powder directly from Hodgdon. Learn more and buy today.

shop.hodgdon.com

 

[Doom]

but does the shorter cut affect burn rate?

Burn rate is controlled by both the grain size (specifically area) and chemical retardant. The smaller grain size should equate to a faster burn rate.

When 4831 SC was released, Hodgdon specifically stated the load data was exactly the same. They are the same powder with different kernel sizes to allow the SC to flow better through powder measures and to allow a more dense case fill.

I'll see if I can find my old Hodgdon manual that has this info.

So the maximum and minimum load data is the same meaning that it is safe to use. It may mean that the powders will behave the same which may or may not be the case. Using deterrent to offset the difference in grain size may have varying effects in different calibers and with the different load densities.

 

[lash]

Burn rate is controlled by both the grain size (specifically area) and chemical retardant. The smaller grain size should equate to a faster burn rate.

So the maximum and minimum load data is the same meaning that it is safe to use. It may mean that the powders will behave the same which may or may not be the case. Using deterrent to offset the difference in grain size may have varying effects in different calibers and with the different load densities.

You should take up your argument with Hodgden.

 

[Doom]

You should take up your argument with Hodgden.

Didn't take issue just commenting on the difference. Now if I were to take issue it would concern the comment "and the exact ballistic copy of H4831". Considering most every batch of a given powder is somewhat different. Marketing. Of course ADI discontinued the H4831/ADI 2213 quite a while ago so its really a moot point.

 

[Woolsocks]

Thanks for the info, folks. My pea-brain still thinks the SC has to burn differently - think big pieces of wood in a campfire vs small ones. So I’ll use the load data (since load data is approximate anyway), but I don’t think I’d use the two interchangeably.

 

[LimaKilo]

think big pieces of wood in a campfire vs small ones.

Now if we add to your comparison a scientist who very precisely dampened the small logs to burn exactly at the same rate as the big ones, you are right on the money.

 

[Numenur]

H4831 and H4831SC are the same exact powder, same burn rate. The difference is in the size if the extruded powder, SC stands for Short Cut.