Do a Google Search for Accurate Arms Reloading Manual #2
Accurate XMR 4350 Powder
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centershot
Silver $$ Contributor
What comes up is Amazon selling the book but it is out of stock. And Accurate's web site.
Interesting to read the fractured, maybe circuitous is a better word, history of the various 4350s. Maybe I can muddy the waters even further. I dont have #2 but do have the Accurate #1 Loading Guide from 1994. Nothing is mentioned about their 4350 being short grained. From what I've read their A4350 & A4064 of this era was originally Scot Powder's Brigadier 4351 & 4065. Accurate bought Scot in '92 or '93 per Handloader's Digest #13. The Scot 4351 I have (an '89 lot) was made in Scotland & is short grained. I have no AA4350 from the '94 era, but do have older H4350 (an '87 lot) also made in Scotland which is not the short grain stuff. For a time H4350 was available alongside H4350SC. All current H4350 is short grain but the lots I have are Australian from 2020. Back to earlier Accurate... the 2495 & 2015 I have are Chinese made with '92 lot #s, while the '92 2460 I have says it's Israeli. The '92 lot of 2700 has no country of origin so it may be from the US (Olin?). Confused yet?
A tale of 2 cartridges... I just finished up an 8# metal can of IMR4350 from, by memory, the mid to late 80s made in Canada. It was a wonderfully useful powder in many cartridges. The newish 2019 Canadian lot just received is different enough to almost be considered a whole 'nother powder. At the same ambient temp, with all components from the same boxes except for the new lot of IMR4350, my 22-250 Ackley showed around 200fps slower with equal charge weights of the new lot. The old lot was first shot in 5-92 & reshot just this past spring with no noticeable difference in velocity or accuracy. In larger cases (7x57 & 300 H&H) there was also significant velocity loss, but to a lesser degree. Accuracy/precision also suffered. Most of the loads that worked so well from the old lot were compressed, some were very compressed. The new lot bulks the same but has less energy? Not quite sure what to do with it. For what it's worth the older IMR4350 gr. for gr. showed exactly the same speeds as RL23 in the 300 H&H with 180s, but I couldn't get enough RL23 into the 22-250 Ackley to do anything worthwhile due to it's bulk. The Scot 4351 is showing promise in the 22-250 so I would say it was relatively close to the old lot of IMR4350. IMR 4451 is also showing promise with limited testing so far.
What does it all mean? I dont know. What's in a name? I've read somewhere on the internet (so it must be true) that reloaders get the dregs of larger batches blended to an approximate burn rate. About all I can figure is reloading manuals are only guides for their particular lots of components, not necessarily ours. I would imagine that starting loads from any source will be acceptable for any of the 4350s & with careful development there will be different maximums. We have to work with what we get & not blindly assume that anything will be the same regardless of a name. Not to suggest anybody exceed the written word, but sometimes... I'll shut up now.
A tale of 2 cartridges... I just finished up an 8# metal can of IMR4350 from, by memory, the mid to late 80s made in Canada. It was a wonderfully useful powder in many cartridges. The newish 2019 Canadian lot just received is different enough to almost be considered a whole 'nother powder. At the same ambient temp, with all components from the same boxes except for the new lot of IMR4350, my 22-250 Ackley showed around 200fps slower with equal charge weights of the new lot. The old lot was first shot in 5-92 & reshot just this past spring with no noticeable difference in velocity or accuracy. In larger cases (7x57 & 300 H&H) there was also significant velocity loss, but to a lesser degree. Accuracy/precision also suffered. Most of the loads that worked so well from the old lot were compressed, some were very compressed. The new lot bulks the same but has less energy? Not quite sure what to do with it. For what it's worth the older IMR4350 gr. for gr. showed exactly the same speeds as RL23 in the 300 H&H with 180s, but I couldn't get enough RL23 into the 22-250 Ackley to do anything worthwhile due to it's bulk. The Scot 4351 is showing promise in the 22-250 so I would say it was relatively close to the old lot of IMR4350. IMR 4451 is also showing promise with limited testing so far.
What does it all mean? I dont know. What's in a name? I've read somewhere on the internet (so it must be true) that reloaders get the dregs of larger batches blended to an approximate burn rate. About all I can figure is reloading manuals are only guides for their particular lots of components, not necessarily ours. I would imagine that starting loads from any source will be acceptable for any of the 4350s & with careful development there will be different maximums. We have to work with what we get & not blindly assume that anything will be the same regardless of a name. Not to suggest anybody exceed the written word, but sometimes... I'll shut up now.
Your Google must be broen because when I do it there are two different links to PDF versions among the multiple hits. I downloaded the manual from the hit address that begins with "stupidityshouldhurt" over a month ago.
I'll try again, using the "Link" symbol here for both those hits.
stupidityshouldhurt link
This one shows a publication date of 2002
survivorlibrary link
Here's a link to my Google search with all the hits, including Amazon, MidwayUSA, etc
Google Search Accurate Arms Reloading Manual #2
ETA: I've tested clicking on all these after making this post and they work for me
Shooters World contact web page for inquiries / questions.
shootersworldpowder.com
I sent an email to
Karen Gerard is who replied to my inquiries.
shootersworldpowder.com
ETA: I tested the web links I put in this post and they worked for me.
Contact - Shooters World | Propellant
Shooters World provides propellants and smokeless powder and other ammunition components to FFL Class 6 ammunition loaders. Contact us to find out more.
shootersworldpowder.com
I sent an email to
shootersworldsc@gmail.com
as shown further down that page instead of populating the fields under "Send Us A Message".Karen Gerard is who replied to my inquiries.
About Shooters World | Smokeless Powder
Shooters World provides wholesale ammunition, smokeless powder, gunpowder, and other ammunition components to FFL Class 6 ammunition loaders.
shootersworldpowder.com
ETA: I tested the web links I put in this post and they worked for me.
centershot
Silver $$ Contributor
Thank you very much!
centershot
Silver $$ Contributor
Mr Zorg, Both manuals list the powder in the beginning as XMR 4350, but in the loading data list it as 4350. Can I assume that this is XMR powder?
Accurate powder has had quite a history!
Accurate powder has had quite a history!
This is where your question is best directed.
About Shooters World | Smokeless Powder
Shooters World provides wholesale ammunition, smokeless powder, gunpowder, and other ammunition components to FFL Class 6 ammunition loaders.
shootersworldpowder.com
This is on book page 5 of the manual with the year 2000 date.
"4350 - (Also known as XMR-4350). America’s most popular reloading propellant for rifle cartridges. A single base, extruded propellant similar to IMR 4350. Delivers su- perb performance in cartridges from .243 Win. and .270 Win. to the largest magnums."
This is on book page 9 of the manual with 2002 date.
"XMR-4350TM America’s most popular reloading propellant for rifle cartridges. A single base, extruded propellant similar to IMR 4350. Delivers superb results in cartridges from the 243 Winchester and 270 Winchester to the largest magnums."
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