Was gifted a 6x45mm barrel at 12" with a 1/10 twist. I did the midway usa YouTube video with Larry Porterfield on assessing your barrel twist, so I think I'm correct at the 1/10 twist. I'm curious if anyone has experience with this type of setup or similar?

The gentleman I received it from was Army Ranger in 60's and 70's and did a lot of wildcat rounds. I have 6.5/06, 7mm/08 from him too. I'm learning the military had been trying to see if those ballistics 6x45 were beneficial back then but I can't find simple loads for this type of setup. I believe I'm not looking in the right area. I have the reloading manuals from the 80's/90's from Speer, etc. But might need to update some Information. I've definitely read up quite a bit and at the moment I have WIN 748 I'm able to use but am reading 8028, h335, h322 are also options. Apparently  h335 compared to h322 makes a bigger fireball out of the barrel and I'm reading certain powders like longer barrels, etc. I could be wrong but just what I think I'm reading in some of the forums and literature out there.

I'd like to get the barrel re-rifled to spin the "as heavy as possible" bullets, maybe up to 80, 85, 87gr or so and I have to put a pin and weld compensator on it to be legal here in washington. I'm originally from AZ.

Goal is to get some hogs, javalina, coyote, self defense, and I simply just like accuracy, to make my own ammo and enjoy building these tools.

It was a popular benchrest cartridge before the PPCs took their throne as kings of that sport.

I've got load data for this round on my personal laptop, I'll upload later.


CD

Ohhh. Ok. I didn't know that. Thx. I will read up more on ppc.

Attached File

Attached File


IM sent

CD

Ok. Thank you!

I have an older Hodgdon Reloading magazine with a bunch of 6x45 loads in it. Used with success for my 20" build. If you IM me your cell # or email, I will send you pictures of the pages.

Edit, my build is a 20" Satern barrel, not a 16". Sheesh, I guess it's been a while since I played with that one...

Topic Moved

Thanks for posting this.

I used to shoot 6x45 quite a bit.  PM me your email address and I'll send a PDF of load data.

It's a great cartridge.  I always wondered why it wasn't more popular.

I've had at least one 6x45/6mm-223 or whatever you want to call it since the late  80's.  I try to keep all of my 6mm brass nickel so they're easy to tell apart at a glance.   Try, as right now I know I have a box of hollowpoints leftover from coyote hunting that are in brass cases.   The shoulders  are very easy to bulge if you try to crimp too hard or have uneven length brass.    They've all shot great, and as mentioned the older Hodgdon reloading manuals (mine is #26) have reloading data.

Would be better served just buying a new barrel.  I don't think you will have any problem with a 10 twist.  Try it before you do anything rash

The 1:10 will shoot 87/90's without any problem. I own six of those puppies and have shot the 87 in matches/PD fields since the early 90'3. Won a ton of trophies with them. I also have shot a bolt gun barreled Savage at 500 yard F-Class and did well with the 87's.

Greg