.45ACP barrel length?

[Murmur]

Hey D-Mon...thanks for offering with the twist rate calculator. I've just sent an email to a cast bullet supplier for some bullet dimensions for the .457
400 & 500gr cast bullets.
What was it with your suppressed ruger 44 project that went wrong? Interestingly SRT arms (they build a neat looking suppressed 44 Ruger) mention that a faster twist 1-11" douglas barrel should see groups as little as an inch at 100 yds.
How did you find the sound signature compared to your 300 whisper?