Old powder number conversions

[Harry]

I'm trying to determine which modern powders I need to use verses the old powder numbers listed in the Lyman #41 handbook for the following:

Lyman #311291 : 2400, 4198, Hi-Vel, 4895, 3031 (Is this the same as IMR3031?)

Lyman #311413 : 2400, 4227, 4759, 4198, Hi-Vel, 4895, Unique

150gr jacketed : Hi-Vel, 4895, 3031, 4064, 4320, 4350, Unique

Lyman #358156 : No. 6, 5066, Unique

H&G #50 : Bullseye, No. 6, 5066, Unique

I relaize I have duplicated powder numbers. I copied straight out of the handbook for each mold I have, or jacketed bullet I want to use.

I still have some of those old powders that are good, but I need to purchase todays powders to replentish.

Thanks for any help.

[Glen]

Of the powders you list, Hi-Vel, Alcan #6 and 5066 have been discontinued. The rest are current production.

2400 has changed a little bit (gotten a little bit faster), but you can still use the Lyman load data. Just start low and work up.

Yes, there is only one 3031 (IMR3031). Same for 4759, 4064, 4320 (all IMR) and Unique (Alliant).

4198, 4227 and 4895 used to be available as both the H and IMR numbers (which were the same powders in different packaging), but that has been dropped and they are only available in the IMR packages today. (This is NOT to say that 4227, 4198 and 4895 are the same, or even similar powders, rather this is to say the H4198 was the same as IMR4198, etc.)

H4350 is reputed to be a little bit slower than IMR4350, but I haven't noticed much of a difference between the two.

Just go ahead and replenish. The new powders will do for you what the old powders did.

[onceabull]

Glen: I have and still use fttt AL-5,Al-7 mostly, and AL-8..BUT,I've been at this a long time without every seeing,or heard tell of an AL-6.. Non-USA distribution. or ????????:idea: Onceabull

[cajun shooter]

Alot of the old manuals list cup for pressure. That stands for copper units. This is no longer used and you should stick with a more modern manual. I have Speer one and others but only use the up to date loads. Back in 1967 a manual had a load that was very dangerous and should not be used. The warning on that has long been lost and forgotten.

[44man]

Some of those powders are gone. No. 6, Hi-vel, and 5066.
Glen is right about the rest. Just use a new manual for loads.
Don't be afraid to branch out. Powders like Varget and the Reloader series are great. The Hodgdon extreme powders tolerate temperature changes better then the old ones. Then there are the short cut powders that meter better.

[woody1]

Methinks the No. 6 spoken of in the original post is the long discontinued Dupont Pistol powder No. 6. Regards, Woody

[44man]

Methinks the No. 6 spoken of in the original post is the long discontinued Dupont Pistol powder No. 6. Regards, Woody
I think you are correct.

[Harry]

Thanks all for your inputs. I have the Hodgon annual publication with lots of powders listed. Also am going to buy the latest Lyman handbook. I am trying to get an order together and need to determine which to order.

Thanks again everyone.