doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com 1/2oz smokeless .410 recipes?

PLEASE NOTA BENE:: I IN fACT "Did Not" recommend Loading with Unique. If you could read my statements as well as you can "Pounce" upon them you would see that I stated there were no current pressure testated data available for it & listed it for "Historical Reference Only". You may well call that Anecdotal. It was however published data from a stated source, though stated to be obsolete & unrecommended.
On the other hand "Do You" have any data for 2400 in loads as light as 3/8oz in a velocity range suitable for a Black Powder era Gun either current or obsolete. I thought Not.
Also I note you have given him actual loading recommendations, I did not. Would you not consider those recommendations "Anecdotal".
The major factor in pressure, thus powder burn rates is load density, ie amount of weight to be moved per SqIn of bore area. A 1/8oz change of weight in a .410 is not an insignificant amount. As noted earlier this is eguivelent to a 3/8+ oz change in a 12ga. Would you take data for a 1½oz 12ga load & recommend simply dropping back to 1 1/8oz of shot & cutting the charge a little "Of the Same Powder" for someone desiring to shoot a short chambered Black Powder 12ga. I Thought Not.
Why in the world would you then recommend it for a .410??

Miller, I was only replying to your statement that "Unique should not be out of range for reduced...." I do not imply that you recommended specific loads, but you did make some presumptuous statements about the properties of various components, as did I. My main point was that Unique is not the next logical step up in burn rate from 2400 in the Hercules line if Mr. Tinker desires to experiment. The next step in burn rate is Blue Dot and next after that is Herco. Unique is the next step after Herco, and should be a little fast for the .410. At the risk of sounding like I am recommending a specific load, if my light 2400 load showed signs of poor ignition, I would be inclined to substitute (not by any specific weight, but by the recommendation of the powder maker) a light charge of Blue Dot. Again, I will say that, in my experience, I would not expect to have much of a problem with the 2400.

Burn rates:

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

http://stevespages.com/powderrates.html

Pete

Good information!

I'll likely get the chance to focus on fiddling with this more in the next couple of weeks.
In the meantime I'm dredging through all the old books I have here looking for any vintage information specific to the little 2" .410

As yet, I haven't seen a thing in the texts and manuals.


It has been suggested I load up a few samples and ship them off to Tom Amhurst to see what his pressure gun has to say.
If I do, I'll likely roll a few up in modern plastic hulls too, just go get a repeatable standard established.



--Tinker

PeteM, thanks for the burn rate links. It reminds me of how structured my reloading has been over the years. My present keg of 2400 is pre Alliant vintage and I will probably be loading .410s out of that keg for the next ten years. It isn't that I don't load a lot of .410, I do. However, I had about three four pounders of 296 on hand when a friend gifted me an old eight pounder of 2400, a lifetime supply. I hadn't used 2400 for probably 20 years, since I got a keg of 296 as a gift about 1984 when I bought a gun from a shooting buddy. I just kept buying 296 when I ran out.