The Rohrbaugh Forum

Miscellaneous => Other Guns => Topic started by: FoundFather on February 10, 2022, 10:57:50 PM

Title: Convert RM380 to 9mm?
Post by: FoundFather on February 10, 2022, 10:57:50 PM
The Remington RM380, as most of you know, was Remington's version of the Rohrbaugh R380, which as probably everyone knows, was a rechambering of the Rhohrbaugh R9.  This begs the question: is it possible to go the other direction, and "upconvert" a RM380 to 9mm?  Is it safe?  Has anyone done it?  What parts would be needed?

Why bother, you might ask?  The short answer is that there are a whole lot more RM380's around than there are R9's.  The long answer is, well, long......
Title: Re: Convert RM380 to 9mm?
Post by: ECR on February 13, 2022, 10:04:53 PM
Title: Re: Convert RM380 to 9mm?
Post by: tracker on February 14, 2022, 09:27:25 AM
I think that he means 9mm on the above parts.
Title: Re: Convert RM380 to 9mm?
Post by: MRC on February 14, 2022, 11:54:43 AM
It won't work.

Remington advised against 380 +P ammo in theri RM380.  I know a guy who's RM380 had the frame crack with normal ammo.
Title: Re: Convert RM380 to 9mm?
Post by: ECR on February 14, 2022, 04:19:19 PM
Quote from: tracker on February 14, 2022, 09:27:25 AM
I think that he means 9mm on the above parts.

How did I miss that conversion!?  LOL

Yes, I meant the other way around. 

Good catch Tracker!  Ha haa . . . . . .  Ah, you guys knew what I meant anyway.

ecr
Title: Re: Convert RM380 to 9mm?
Post by: FoundFather on February 14, 2022, 05:07:56 PM
Quote from: MRC on February 14, 2022, 11:54:43 AM
It won't work.

Remington advised against 380 +P ammo in theri RM380.  I know a guy who's RM380 had the frame crack with normal ammo.

Thanks.  I guess they used a cheaper allow than Rohrbaugh did.  Thanks to everyone who indulged me on this.  Probably not the brightest idea to begin with.
Title: Re: Convert RM380 to 9mm?
Post by: ECR on February 17, 2022, 06:39:57 PM
I believe the RM380 frame is poured into a mold. We used 7075-T651 aircraft-grade aluminum billets and C.N.C. cut the frames.
They were much stronger than the Remington version, but then again, our R9 was around $1,200 a copy and the RM380 was around $275. . . . . A huge difference!
Title: Re: Convert RM380 to 9mm?
Post by: FoundFather on February 17, 2022, 11:30:01 PM
Thanks, Eric!  I completely overlooked who was posting.  Nothing like hearing from the guy whose names is on the gun!
Title: Re: Convert RM380 to 9mm?
Post by: ECR on February 18, 2022, 07:06:47 PM
Quote from: FoundFather on February 17, 2022, 11:30:01 PM
Thanks, Eric!  I completely overlooked who was posting.  Nothing like hearing from the guy whose name is on the gun!

Thank you!