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Brandt 07-21-2011 12:29 PM

I am looking for load data for the 8 IHMSA. One book I have says it used 308 brass necked up and trimmed. Another source says it is a 300 Savage necked up with a 38* shoulder.
I would like to know the parent case, load data with heavy (200gr +) bullets and where to find dies.
If anybody has a used set of dies that they want to part with - that would be great!!

SHOOTALL 07-21-2011 01:19 PM

Re: 8mm IHMSA
Check with Bullberry barrels

Ken ONeill 07-25-2011 10:35 AM

Re: 8mm IHMSA
.300 Savage brass is the easiest to use, but .308 Win. brass can also be used 7 trimmed a bit. The IHMSA published a loading book about 30 years ago. The Gun Digest Book of Metallic Silhouette Shooting, Ed. 1 may also have some loads.

SHOOTALL 07-25-2011 10:42 AM

Re: 8mm IHMSA
If you can find a copy of SHOOTING STEEL it might have some load data.

Brandt 07-25-2011 12:14 PM

Re: 8mm IHMSA
I've got Metallic Sil Shooting 2nd Edition and it doesn't have any data.

SHOOTALL 07-25-2011 12:15 PM

Re: 8mm IHMSA
I was thinking shooting steel might

19 Turkeys 07-26-2011 01:20 PM

Re: 8mm IHMSA
Contact Wichita, they developed the IHMSA line of chamberings using the 220 Russian. See their website below.

Steve W.

SHOOTALL 07-29-2011 03:45 PM

Re: 8mm IHMSA
I found imformation on the 8 mm international. I'm thinking its the same but there were alot of wildcats back then. The 8 mm int as were the other IMHSA rounds were by Elgin Gates and built by him and other gunsmiths back in 75 -80's before any company picked them up.

Brandt 07-31-2011 06:25 PM

Re: 8mm IHMSA

Brandt 09-10-2014 10:27 PM

Re: 8mm IHMSA
Found data in Wildcat Cartridges Vol II

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