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Thread: Vihtavuori N3SL powder load data

  1. #1
    Join Date
    3rd December 2020
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    Vihtavuori N3SL powder load data

    I acquired (at a price I couldn't pass up) most of a container of Vihtavuori N3SL powder.
    No recent load data guides even mention it.
    Reportedly a shotgun powder with a slightly faster burn rate than N320.
    The container says N3SL load data can be found in the Vihtavuori 1995 edition.
    Available online for $14; I don't see the point in buying it for a single data set.
    I contacted Vihtavuori directly and spoke to one of their load data techs. He told me there is no information on that powder in their current database.
    Does anyone here have access to that 1995 volume and, if so, any chance I can get that specific powder/load data?
    Is it suitable for 9mm Luger, .40 S&W, 10mm Auto, or .45 ACP loads?

  2. #2
    Join Date
    15th September 2010
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    I looked online at the powder you mention, I saw one sight that had a pound of it for sale. Their sight said it was 'slightly faster burning than N320'. In one of my reloading manuals, they describe N320 as 'Suitable for shotshells (about like Red Dot) and midrange handgun loads, N320 works well in the .38 to .45 caliber class'. So it sounds like N3SL is similar to N320. Hornady has a few .45 ACP loads using N320. However, in light of the fact that powder is becoming more available, and there does not appear to be any current data for N3SL, my opinion is pass on it and go with more current powders and load data. I don't know if this is any help to you, but I just wanted to pass it on.

  3. #3
    Join Date
    3rd December 2020
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    Thank you for the reply.
    I agree: without specific data, and with so many other choices of propellants, it's hard to justify taking chances on an unknown. Absent the specific references from the aforementioned 1995 manual, I've pretty much relegated it to Independence Day flash powder.

  4. #4
    Join Date
    15th September 2010
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    When powder is hard to find in my area, I have found that I can usually find something at the website Powder Valley. Their prices are reasonable given todays inflated market.

  5. #5
    Join Date
    16th May 2011
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