My father passed recently and I came into possession of his impressive assortment of reloading supplies. Some of the stuff I recognized, some of the stuff like the #57 primers I don't.

Anyway in this my father has left to me a keg of this strange plaid powder called "Royal Scot Brigadier 4065" What is this stuff and does anybody have any loading data for it?

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Royal Scot was a Shotgun powder I believe and was a relatively fast powder that could also be used in pistols sort of as Bullseye and Red Dot are. I believe they were acquired by Accurate Arms or Western Powder but I am not familiar with it's reloading data since I never had any. I'd do a google search and see what data you can find.

Sorry I can't be of more help - but it's not one of the more popular powders here.

One burn rate chart I have includes the Scot powders.
Brig. 4065 is listed as being slightly slower than H/I-4895 and N530
and slightly faster than N135 and Reloader 12.
So a fairly fast rifle powder but at the slow end for cylindrical cartridges.
(I'd consider it for the very heaviest bullets in the 444 or 45-70 for instance).

I'd use it for applications calling for that range of powders unless you are leery of developing from the ground up or consider it a collectors item.
In the latter case, I'd dump the powder and save/sell the can.
Still... 8 lbs is a fair bit of powder if that can is full and could to be useful to someone if you don't want it.

BTW: Welcome to the forum!
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Many of us are learning something new every day even after we have been at it for decades.
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Attached Files

LoadData Burn Rate Chart (New).pdf (72.7 KB, 35 views)

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NEMO
"Everything 44"

Brigadier was in Scotland and made many powders for the British and Israeli military (along with others!) Often they copied US DuPont (IMR) powders and changed the numbers by one digit. Their 3032 was the same as IMR 3031 but burned 300 degrees cooler and was used in belt fed 7.62 NATO Ammo! I believe with a little internet research you will find 4065 to be quite similar to IMR 4064 (also a good 308 powder) but there will be a slight difference in performance. In the 3032/3031 example it took 5% more 3032 for equal velocity, but for sustained varmint shooting those 300 cooler degrees were a huge bonus!

Ivan

Now that you mention it I kind of remember that deal but never having used the Scot powders I eventually forgot it all.
The only one that would have appealed to me was 4197 but I never ran out of 4198 so had no incentive to try it.
I am sure a lot more memory has gone over the dam thru the decades.
This plague keeps up awhile longer I may forget how to shoot!

Looking more closely at that burn rate chart, I would rearrange several things especially with respect to use in cylindrical cartridges.
I think we all know how "accurate" those things are and how often they agree with each other.
Much salt is indicated.

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NEMO
"Everything 44"

Scot powders were made by Nobel.
Consult some older reloading manuals for factual and contemporaneous information.
Also, Royal Scot published their own (free) manuals years ago.
It would be a tedious process to search, but back issues of Handloader Magazine may have covered them in their "Propellant Profile" column. These are published in CD-ROM format from the publisher.

The National Center for Forensic Science has this:
National Center for Forensic Science

And, there's this:
BURN RATES

Notice the contradiction with the burn rate chart in the post above (Nemo288).
A little known fact: Burn rates are dynamic, not static. Thus, the relative order on a chart is subject to change depending on the specific pressure at which it was tested.
Use Caution!

PS: Not sure how much to say about another forum, but there's a post on the castboolits site where one member quotes from Scot manual #3.

In my accumulation of reloading guides & books I have a Scot Powder Shotshell, Handgun, and Rifle reloading manual 8th Edition. There are quite a few handgun loads listed with Royal Scott. I don't see any 4065 listed until I get to rifle loads, and it says Brigadier 4065. If you want any specific loads, PM me and I'll look it up.

Their definition of Brigadier 4065 is: A medium slow but cooler burning single base tubuler rifle powder approximately 1-2 grains faster than IMR4064. Similar in most respects to IMR4895 and H4895. Ideal for .257, 264, 7mm, and .308calibers and bullet weights. Formerly Herters Rifle Powder No. 101. A Camp Perry favorite.

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H Richard
SWCA1967 SWHF244

Ok we are in business. Thank you all so very much. I loaded up 20 in half grain increments, now just going to see how the PTR 91 prints with them.