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Location: Colorado Springs
Joined: 02/23/2009
Posts: 181
7.55 x 55 K31

All, I've just purchased a K31 and need some data. Thus far, I know I can use .284 brass and resize it for the rifle. But, could anyone tell me what bullet diameter to purchase? I know it is extremely close to .308 but not sure if .308 bullets will do the trick. Any info. on this would be greatly appreciated.

Critter's picture
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Grand Slam Challenge Winner!Moderator
Location: Western Colorado
Joined: 03/26/2009
Posts: 3913
7.55 x 55 K31

According to my Sierra Reloading manual #2 the .308 bullets should be OK, but they suggest for you to slug your barrel to make sure of the caliber.

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Location: Colorado Springs
Joined: 02/23/2009
Posts: 181
7.55 x 55 K31

Thanks Critter, I think I'll have to buy the Sierra guide as well. I currently have the Speer #12, but it doesn't list any info. for this paticular rifle. I don't suppose you could suggest a bullet to use? I've seen Hornady and Sierra both have matchgrade's available. Thanks.

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Grand Slam Challenge Winner!Moderator
Location: Western Colorado
Joined: 03/26/2009
Posts: 3913
7.55 x 55 K31

The only time that I ever shot that round was over 30 years ago and at that time I didn't reload and I just used it for plinking. The web site for Sierra Bullets does list it as a current round that is still in their book so I would suggest that you get it and check it out. It looks like it is between the 30/40 Kraig and the 300 Savage as far as capability is concerned.