H110/W296 Data question

[alloy]

I have a few manuals(Hodgdon's being the one prompting the question) listing identical data for these two powders. Other manuals list differing data, such as Sierra.

Have googled, read a few threads, and still curious...when you see W296 data but not H110(or visa versa), do you consider them the same, use that data, and work yourself up a load?

Pressure sign observance, chrony, general safety procedures, different production lot variances, being a given....do you consider the data virtually interchangable?

[Scrapperz]

I've read on the forums that the same company makes the 2 powders and the company says they are the same. I haven't called myself but after using the 2 powders using Hornady's latest book I have no accuracy problems with my 460 S&W.

[alloy]

the same company makes the 2 powders and the company says they are the same.

Have read that also, so....if you have a bullet you want to use, but you only see data for one powder....you are reasonably confident that singular data provides you with what you need to work up a load with the other powder?

Excuse my redundancy, am trying to work this out for myself....whether I have much data, or 1/2 as much

[Scrapperz]

According to what I have have seen and heard you should be confident that the 2 powders are the same. Of Course always start low and work up.

Also it wouldn't hurt to call the manufacturer and get it right from the "Horses Mouth".

[Scrapperz]

You can also read this thread if ya haven't yet>>>http://smith-wessonforum.com/reloadi...-not-same.html>

The only difference between H-110 and 296 is normal lot-to-lot variation. Depending on shipment date and lot size, even before Hodgdon became the distributor for Winchester powders, shipments from the same lot could be sent to both Winchester and Hodgdon to be packaged as their respective propellant.

This is not an opinion, a guess, or something I read or heard "somewhere". My source was one of the manufacturing engineers at St. Marks Powders in a phone conversation I personally had with him. St. Marks is the manufacturer of several propellants for not only Winchester and Hodgdon but other ammunition manufacturers as well.

Just in case you missed it, the manufacturer, St. Marks Powders, says H-110 and 296 both are made by them and are identical.

[alloy]

Will do a call.

Have noted that my LEE data lists one powder for a bullet, then the other powder for the next, and back, and forth. Also have the same Hornady you mention.

That danged Sierra manual.

[Scrapperz]

I found the info on the St. Marks the powder maker>>>http://www.generaldynamics.com/overv.../niceville.htm

[Mal H]

...you are reasonably confident that singular data provides you with what you need to work up a load with the other powder?

Yes, given the general reloading rules you stated in your first post which are a given for any powder, identical or not.

[mrawesome22]

H414 and WW760 is another set of identical powders. I forget WW748's twin. H380 perhaps?

[BruceM]

The two powders are identical now.

Even 30 years ago when H110 was a surplus powder and W296 was made by Olin, the two were so close that load data was, for all intents and purposes, identical.

Remember that this propellant is NOT made for reduced loads and that maximum listed charges should NOT be reduced by more than 3% or a squib load may result. That said, it is a superior powder for magnum handgun loads. It must be used in conjunction with tight bullet pull, which is not the same thing as heavy crimp.



Bruce

[alloy]

Very interesting link Scrapperz, that discussion will take me a while to digest. All replies much appreciated.

I might call them monday, but I really think I'm set with it due to confirmations here.

[RB98SS]

Look at the load data posted on the Hodgdon site for the two powders. You'll get your answer.