Homebrewale
Old Mossy Horns
Do you leave your guns loaded with BH209? I typically leave my ml loaded for the entire season after shooting it in before the season.
From what I gather the dust will gather moisture but they don't recommend swabbing between shots so I'm a bit confused to whether I should leave it loaded for the season.
http://www.blackhorn209.com/faqs/
FAQ #9 How long can I leave a charge in my gun?
We always recommend that you start with a fresh powder charge every day. Although Blackhorn 209 is far less hygroscopic than any other black powder substitutes, barrel “sweating” can put moisture directly in contact with the powder and may affect powder performance. Why take the chance of missing the next mornings great shot?
From #6 of their Technical webpage:
http://www.blackhorn209.com/specs/advantages/
Blackhorn 209 is virtually non-hygroscopic. Changes in temperature or humidity do not affect performance. Blackhorn 209 will not setup or degrade like some other propellants. Shelf life is essentially unlimited.
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Personally, I keep my muzzleloader charged during the two week season. At one time, I recall that they claimed the powder was non-corrosive. You can find reviewers and retailers claiming that. I don't see it on the website now so they may have backed off on the claim.
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