IMR Trail Boss reduced load for Rifle and Pistol calculations

Rule3 · Jul 14, 2010

There have been several threads on IMR's Trail Boss Powder. I have used it but was not real fired up about only due to it's cost. That jar that looks like a pound is only 9 oz and the cost per grain or per load come out higher than using other powders.

I stumbled on this info today which maybe folks have seen already, but found it very interesting. Pretty much you can use the powder for any caliber/load and calculate your own load simply by following the instructions in this PDF which is from IMR's website. So with that info and if a good price can be found on larger containers this seems like a very universal and safe powder to use.

New Products

Under data:
http://www.imrpowder.com/PDF/Trail-Boss-data.pdf

Titegroups · Jul 15, 2010

A lot of "snipers" use it for subsonic rifle loads. Looking at the chart you can see where these loadings end up velocity wise. With a bit of tweaking they become subsonic but have some weight behind them for energy. 300 whisper. Similar to black powder, fill it to the rim, and scrape off the excess, and stick a bullet in it. So to speak. I've used quite a bit of it, fun at about 2.0g in a revolver case, quieter than a pellet gun. Backyard friendly.

kraigwy · Jul 16, 2010

Similar to black powder, fill it to the rim, and scrape off the excess, and stick a bullet in it.

Not true: Trailboss should never be compressed. It breaks up the little donuts and changes the burning rate.

Fill the case to where the bottom of the bullet will rest, then use 75% of that load as a starting point.

Its a great powder for reduced loads. I use a ton of it in rifles with cast bullets for some cheap practice.

Titegroups · Jul 16, 2010

kraigwy said:
Not true: Trailboss should never be compressed. It breaks up the little donuts and changes the burning rate.

Fill the case to where the bottom of the bullet will rest, then use 75% of that load as a starting point.

Its a great powder for reduced loads. I use a ton of it in rifles with cast bullets for some cheap practice.

That was reloading Humor. LOL.

Rule3 · Jul 16, 2010

I just thought it was interesting that as mentioned, just fill it to where the bullet would be seated and that is your max load. So if you are ever stranded with no scale , powder drop or dippers you can load pretty much any caliber and not worry.

I shot some 44 Special today out of 629 and it was almost like a 22lr. Moved on up to some 240gr LSW with 19 grs 2400 and it was a bit different.

duckloads · Jul 17, 2010

I Like TB. I've been lucky to find it for around $13 per 9oz bottle at Sportsman's Warehouse. I've got a couple of cans, but have not seen any at this price in a while. Powder Valley, Inc. usually has it for around $11 per can.

Rule3 · Jul 17, 2010

duckloads said:
I Like TB. I've been lucky to find it for around $13 per 9oz bottle at Sportsman's Warehouse. I've got a couple of cans, but have not seen any at this price in a while. Powder Valley, Inc. usually has it for around $11 per can.

I would buy more of it at that price ($11) if I could find it.

yellowf4 · Jul 23, 2010

I love TB. I use it in my 500. 10 gr with a 440gr Lead Head bullet gives a very reliable 812fps load that is very accurate and shoots like a giant 38spl. Only problem is that now I can't get my gun back from the girlfriend....it is also a much cleaner powder than the ole "Throw some Unique in the case" loads.

IMR Trail Boss reduced load for Rifle and Pistol calculations

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