Welcome to M1911.ORG
The M1911 Pistols Organization Forums Site


Dear members,
Please make sure the email address we have for you, is correct and valid.


Sponsors Panel
If you intend to buy something from Brownells, Cabela's, TandemKros or Tekmat, please use their banners in our sites. Whatever you buy from them, gives us a small commission, which helps us keep these sites alive. You still pay the normal price, our commission comes from their profit, so you have nothing to lose, while we have something to gain. Also, don't forget to visit our other sponsors sites, click-throughs are appreciated by our advertisers. Your help is appreciated.
If you want to become a sponsor and see your banner in the above panel, click here to contact us.

Page 2 of 2 FirstFirst 12
Results 11 to 13 of 13

Thread: .38 Super and Lil'Gun

  1. #11
    Join Date
    2nd June 2004
    Location
    Terra
    Posts
    21,079
    Posts liked by others
    275
    Since this discussion has been revived, I'll toss out something I overlooked before. L'il Gun is a MUCH slower-burning powder than Winchester 231 and most of the powders we're accustomed to see used for 199 loads.

    http://www.frfrogspad.com/burnrate.htm
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside

  2. #12
    Join Date
    12th October 2008
    Location
    North Carolina
    Posts
    279
    Posts liked by others
    8
    Ken, as far as I know, .38 Super is the only round for which Lil'Gun is listed, other than for the .410 Shotgun. Lil'Gun was designed for the .410. As far as burn rate, yes, Lil'Gun is slower than I think all of the typical pistol powders, which is why the pressure is so low, as Hawkmoon pointed out. I am thinking hard about getting a chronograph for balliistic testing.

    Thanks for the very meaningful discussion.
    Wade

  3. #13
    Join Date
    2nd December 2004
    Posts
    500
    Posts liked by others
    6
    Quote Originally Posted by Hawkmoon View Post

    Capsule summary: Unless everything you are doing is exactly the same as published data, you can't regard the published data as anything more than an approximation.
    Think of published data as a recipe recommendation.
    Subject to adjustment.

    Even with a chronograph you are at most getting a measure of the average pressure up the bore after firing.

    You need piezo or strain gauge type data to come close to checking peak pressure and pressure time curves.
    And it is very difficult to use these tools on an actual pistol.
    The data comes from test barrels.
    Few if those have anything approaching 1911 barrel profiles.

Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  



Sponsors Panel
If you intend to buy something from Brownells, please use their banners above. Whatever you buy from them, gives us a small commission, which helps us keep these sites alive. You still pay the normal price, our commission comes from their profit, so you have nothing to lose, while we have something to gain. Your help is appreciated.
If you want to become a sponsor and see your banner in the above panel, click here to contact us.

Non-gun-related supporters.
Thank you for visiting our supporters.