out of the 200+ powder burn rates listed today. How many of them are actually the same powder? like [[ 414-760,. 110-296 ]] would you say half??

NO !, burn rates are variable and not exact they are general guide lines !.

H 4895 is not IMR 4895 . Major powder manufactures do however manufacture for and under different

company's names but too the other company's specifications . Figuring who makes what and when they

may or may not of had that particular contract isn't for the general public's knowledge !.

Concentrate on load development ! Do your part for case prep ,bullet ,powder and primer selections .

Why complicate matters of which you have absolutely NO control over .

powder burn rate chart:

http://www.reloadbench.com/burn.html

tasunkawitko.. i have plenty of burn charts,..im asking how many are the same

i'd say none.

414 AND 760 ARE THE SAME.

same burn rate, but not the same powder.

quote:

Originally posted by tasunkawitko:
same burn rate, but not the same powder.

H-414 and Win 760 are indeed the very same powder.

There was another thread where identical powders were identified and maybe someone that is good with the search function can find it.....

I caution folks about this as the internet has millions of "experts".

well, i'll be darned - learn something new every day!

my apologies - i stand corrected.

quote:

Originally posted by tasunkawitko:
well, i'll be darned - learn something new every day!

my apologies - i stand corrected.

No need for apologies.....

Go to Hodgdon's website and look at any data where H-414 is used and notice that the data for Win 760 is absolutely identical in velocity and pressure. They test one and publish data for both.

Also I have been told directly by Hodgdon employees that they are the same

I believe the following powders are twins of each other. I’m interested in learning of any others.

Hodgdon H-110 and Winchester WW-296

Hodgdon BL-C2 and Winchester WW-748

Hodgdon HS-6 and Winchester WW-540

Hodgdon HS-7 and Winchester WW-571

Hodgdon H-414 and Winchester WW-760

There are a few that are the same and a bunch assumed to be the same but are not. Take Reloader15 and Norma 230b. Many people think they are the same but they subtly different. One place that helps identify identical powders is Quikload. If you syspect two powders are the same then lookup the Quickload specs for the powders. In general, ball powders fall into same category since you have one US manufacturer supplying mutiple distributers...760 and H414 for example.

With Hogdon buying WW, you'll see many more powders being eliminated or become identical. W231 & HP38 are now also identical powders.

hogden's been filling WW's powder cans for quite a few years now.
even though, it's still best to treat each powder as different and work up from a 10% or so reduction. just recently a year ago or so, (i don't recall the mfr.), there has been some powders that weren't what they should have been as far as burn rate.....mistakes do happen to everyone!.

quote:

148. AR2213SC (ADI)
149. N205 (Norma)
150. 3100 XMR (Accurate)
151. WMR (Winchester)
152. H4831 (Hodgdon)

Well now, here is a curious thing. ADI manufacture H4831 and have changed the formulation of their original AR2213 to suit and call it AR2213SC (for Short Cut). Yet, in the burn rate chart, the two are listed some ways apart! It's the same stuff! What gives? Varget is supposed to be the same as AR2208 yet it too is listed as some ways apart! ADI actually use Hodgdon's figures in their load data tables for their AR2208. Again - what gives?

quote:

Posted 27 March 2009 19:38 Hide Post
hogden's been filling WW's powder cans for quite a few years now.

Actually it was Winchester (Olin) that filled Hodgdon cans for years.

quote:

Originally posted by MickinColo:
I believe the following powders are twins of each other. I’m interested in learning of any others.

Hodgdon H-110 and Winchester WW-296

Hodgdon BL-C2 and Winchester WW-748

Hodgdon HS-6 and Winchester WW-540

Hodgdon HS-7 and Winchester WW-571

Can you explain why you think these are identical powders?

Just curious....example.....Hodgon data for BL-C(2) is not the same as Win 748

quote:

Originally posted by vapodog:

quote:

Originally posted by MickinColo:
I believe the following powders are twins of each other. I’m interested in learning of any others.

Hodgdon H-110 and Winchester WW-296

Hodgdon BL-C2 and Winchester WW-748

Hodgdon HS-6 and Winchester WW-540

Hodgdon HS-7 and Winchester WW-571

Can you explain why you think these are identical powders?

Just curious....example.....Hodgon data for BL-C(2) is not the same as Win 748

I agree, I see W748 being just a bit slower.

quote:

Originally posted by fredj338:

quote:

Originally posted by vapodog:

quote:

Originally posted by MickinColo:
I believe the following powders are twins of each other. I’m interested in learning of any others.

Hodgdon H-110 and Winchester WW-296

Hodgdon BL-C2 and Winchester WW-748

Hodgdon HS-6 and Winchester WW-540

Hodgdon HS-7 and Winchester WW-571

Can you explain why you think these are identical powders?

Just curious....example.....Hodgon data for BL-C(2) is not the same as Win 748

I agree, I see W748 being just a bit slower.

I said “I believe” which is different than “I know”. I pulled that information from a number of earlier posts on this subject. I guess I need to check this against QL.

You guys are right, I didn’t check that information first. They are slightly different. That’s what I get for excepting information on these forums at face value and as true and correct.



Here is the quote from the post I got that information from:

“For example, WC-844 is the same spec powder as Hodgdon H-335. And WC-846 is identical spec to Hodgdon BL-C2 and Winchester's WW-748.”

This is what QL had to say about H-414 and WW 760. A very slight difference between the two.

that could be the difference in lot numbers.. you could check 2 different lot numbers of 414 or 760 and get different readings of the same powder..

quote:

Originally posted by vines:
that could be the difference in lot numbers.. you could check 2 different lot numbers of 414 or 760 and get different readings of the same powder..

Yup, I think you're right Vines.