| Company | Website | |
|---|---|---|
| Accurate Arms Co., Inc. | www.accuratepowder.com | |
| Alliant Powder | www.alliantpowder.com | alliant.reloading@atk.com |
| Hodgdon | www.hodgdon.com | help@hodgdon.com |
| IMR Smokeless Powders | www.imrpowder.com | help@imrpowder.com |
| Lapua | www.lapua.com | janne.pohjoispaa@nammo.fi |
| Ramshot | www.ramshot.com | |
| Vihtavouri-Lapua | www.vihtavuori-lapua.com | Jbolda@kaltron.com |