Quote Originally Posted by Harter66 View Post
Your asking for a lot from BP in any of the cases mentioned.

Depending on what your 30-30 platform is will make a big difference in what you can do with it . The NOE 314-230 might work very well with the 30-30 if you have enough twist . It will raise the BC dramatically. Based on my calculations a start velocity of 1550 would carry over 1000 ftlb just past 100 meters . (Strelok calculator ) my 30 WCF doesn't have enough twist to do this consistently.

With BP I think there is a reason for the straight wall cases . I think it has to do with the shock wave of the powder burn . This I expect would lead to bad things in 223 and 243 . The 30 WCF looks like a scaled down 45-70 by comparison.

If we all have a 48th ed Lyman book you can find that within its trap door working limits the 45-110 with an extra 10" of bbl will match the 458 WM with the 405 JSP. I think chasing 1000 metres with BP in less than something on par case wise with the 40-65 and up is going to be less than satisfactory.
Well the 38-55,and the 45-70are both goodlong range calibers
My attempts with Black Powder in a 308 didn't fair to well,plus lots of clean up was necessary to keep shooting.