Replacement Powder for Discontinued AA-8700; very slow stabe burn at low PSI ?

[c3d4b2]

You might find this powder chart useful. I fund it easier to compare the chart than a list.

http://www.lapua.com/fileadmin/user_...Rate_Chart.jpg

[Bret4207]

"Like someone up there in NY, I was just cheap to use that much powder to get those velocities and figure it probably fouled more."

Moi?

Check my post #8 Paul, I'm the cheapy.

[Bret4207]

You might find this powder chart useful. I fund it easier to compare the chart than a list.

http://www.lapua.com/fileadmin/user_...Rate_Chart.jpg

How do we make that chart big enough to read?

[GabbyM]

You might find this powder chart useful. I fund it easier to compare the chart than a list.

http://www.lapua.com/fileadmin/user_...Rate_Chart.jpg

Does that chart read accurate across or only down the brand name vertical line?
Just doesn't look correct. Then whats with Hodgdon? Shows H4198 as faster than Lil Gun and H4227. On the Hodgdon web site chart IMR and H4198 are next to one another.

[c3d4b2]

How do we make that chart big enough to read?

It is a picture. on my browser I left click on the picture and it enlarges. I can also hold down the control key and use the mouse wheel to enlarge shrink the size.

Does that chart read accurate across or only down the brand name vertical line?

The chart is from Lapua and should be reliable for comparing powders. I would not use it for load development.

Then whats with Hodgdon? Shows H4198 as faster than Lil Gun and H4227. On the Hodgdon web site chart IMR and H4198 are next to one another.

From what I have seen, the burn rate of powders varies from lot to lot. It may be simply a mater of the lots of powder used when the testing was performed. I have used quite a bit of Reloader 15 over the years and have seen the burn rate of the powder vary from different powder lots.

From my understanding of the intended use of the chart.... If the powders are in the same horizontal proximity on the chart they have a similar burn rate. For example, If I am looking for RL15 and none is available I can scan the chart and see N140 and Varget are similar powders. Once I know the powders to l can look at the load information in the various manuals to determine the loading information.

[merrden]

Turbo 1889 I am a day late and a dollar short in getting the AA8700 data from The Accurate site could you put it in a email and send it to meerrden@comcast.net I also need to know if the 30 06 loading will reliably cycle an M1 Garand. My son in law bought one and wants to shoot a lot so I told him we could crank up my Dillon 650 and do it up right.. There are a lot of good suggestions here what is the easiest way to collect them in one listing? I shoot most of the calibers listed so any specific loads done since the postings would be appreciated. I used to use H870 for 45/70 and still have some and some cast 405 and 500 gr. laying around. Will have to find some empties as all of mine are full. We fire the same calibers so I am greatly interested in your results with the 50 BMG powders. Email me.

[whisler]

I, too am late to the party for AA8700 info for 30-06. I very recently acquired some in a bunch of powder I bought and was wondering what to do with it. Please PM me.

[rockrat]

Hi-tech ammo has new production 5010 and over on the 50cal site I visit, they say it is a bit faster than the surplus stuff (reduce by 5%). That might work for you. $74/8lbs. Its a coarse stick powder.

[Ole]

Just buy the WW872 @ Wideners for $49/8lbs.

It's not quite as good as the old H870, but it's close enough.

[curator]

WC860 is almost identical to AA8700 in my loadings. GI brass and Pat's Reloading both have it for less than $10 per pound. Excellent powder for cast boolit loads in most military calibers and J-word in 6.5X55

[turbo1889]

Merrden, you should have an e-mail with a whole bunch of .pdf file attachments in your mail box.

Whisler, I can't attach .pdf files to the PM system. Please PM me with an e-mail address for you.

As to the current status of this project for me: The mil surplus powders are working but I don't get as good of ignition with them as I used to get with AA8700 so I have been using a starter charge of a couple grains of R-7 in the bottom of the case with the mil surplus on top. I, of course, take care to ensuring that the top powder is dumped in carefully so that it stacks on top of the lower charge instead of mixing with it and am using tightly compressed loads to ensure no powder migration. R-7 is a pretty slow burning powder to use for an ignition starter charge in a duplex load but I did that deliberately because I still want to preserve the low pressure burn characteristics.

[nanuk]

I just gotta ask.....

How the heck can you guys get powder so cheap?

Wow! up here, most of it runs near $30/lb

I think Ammomart has it cheaper, but you have to buy 100 lbs at a time

[nanuk]

As to the current status of this project for me: The mil surplus powders are working but I don't get as good of ignition with them as I used to get with AA8700 so I have been using a starter charge of a couple grains of R-7 in the bottom of the case with the mil surplus on top. I, of course, take care to ensuring that the top powder is dumped in carefully so that it stacks on top of the lower charge instead of mixing with it and am using tightly compressed loads to ensure no powder migration. R-7 is a pretty slow burning powder to use for an ignition starter charge in a duplex load but I did that deliberately because I still want to preserve the low pressure burn characteristics.

Turbo: is R-7 known for ease of ignition?

[tuckerdog]

anybody still using western 5744

[Ringer]

Hi,
Interesting and informative posts!
Would the WC- 872 work with the 180gn srp GC Rcbs boolit at 100yds in an '03?
Full case compressed lightly? I'd like to keep the pressure down and speed @ 1500 fps.
What kind of recoil off the bench?
Just starting with smokeless & cast in the long guns. I also shoot 45-70, and 38-55, so far with black.
Comments,Loads used?
Thanks,
Ringer / Leo

[turbo1889]

Turbo: is R-7 known for ease of ignition?

Within its burn rate range and powder type properties, Yes. Are there other powders that ignite better then R-7 does, Yes. But they don't offer the same stability and linear non-exponential burn curve within the same pressure range and burn rate that R-7 does. R-7 is very pressure spike resistant within a fairly wide range. This combined with its stable burn and reliable ignites at low pressures is why I chose to use it as a duplex load ignition booster charge in this kind of particular situation.

[felix]

R7 is an EXCELLENT choice for a small granule main powder primer extender. The primer extender powder should mimic the physicals of the primary powder as closely as possible. For 5010 primary and their lookalikes, you might consider 4759 instead. 5744 prolly would give a little too much umph because of its nitroglycerin content (20 percent!). However, it might be OK in below freezing weather, and adjusted a little lower than for 4759. Of course, others can be used if care is taken to assure loading (and traveling) consistency. ... felix

[Mr. Cha Ching]

I just came into possession of two cans of AA8700 and the links to the AA site are no longer valid. Does anyone have any actually load data saved on this powder, esp. for the 30-06, any info would be helpful....thanks.........ching

[sundog]

MrChaChing, I have a pdf version of AA data from 2002 that has 30-06 load data with 8700 for 200 and 220 gr j-bullets.

BUT!!!! It also has 8700 data for cast ! ! ! for 152RN, 180RN, and 210RN indicating a CC250 primer used.

Start and Max charge weights for all 3 boolit weights are 54.0/~1845 to 60.0/~2000.

Even though I am posting this as I see it int the manual -- use it at your own risk.

Again, this is from the 2002 AA Load data on pdf.

I'll try to get a print screen of that page and post it.

[sundog]

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