Originally Posted by
JimB..
Your question was about selecting a platform, so I’d suggest the H&R single shot for the reasons stated above.
But what I was trying to get to was an understanding of what you’re trying to accomplish, and “low muzzle pressure” isn’t a goal. If that really is all you care about, then just port the barrel starting a few inches in front of the chamber, ta-da zero muzzle pressure…but I’m guessing that isn’t your goal.
Your project is odd, and that’s great, but why not explain why you’re considering what you’re considering? As you’ve explained it, you’re not going to achieve anything that can’t already be done with a stock handi rifle or contender and a 9mm or 38/357 barrel. You’re intentionally adding bulk, length and weight that seem to achieve nothing. I assume that you’re not striving to accomplish nothing, so can you explain what you’re chasing?
But if it’s a secret that’s fine to and I’ll just stick with answering the question you asked.