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1/25/2018 7:38:29 AM
Posted: 12/12/2001 9:34:46 AM EST
Picked up a box of hornady 70 gr spire points, box marked as .22 cal but also says .227 dia. (which they are) anyone use these in a AR? seems like they are a little large to me,Also anyone have any loads? (assuming they can be safely used in a AR)Why the .227 dia. bullets?
Link Posted: 12/12/2001 9:39:53 AM EST
Don't remember any .227. Have you mic them to check?
I don't have loading data, but what dia are the 220 russian bullets?
Link Posted: 12/12/2001 9:45:09 AM EST
They are for the Savage .22 Hi-Power...
Link Posted: 12/12/2001 9:47:17 AM EST
[Last Edit: 12/12/2001 9:41:12 AM EST by Keith_J]
.227 s the bore for the .22 Savage Hi=Power, a Newton designed cartridge (he is the inventor of the .250-3000 Savage and others) that was affectionately labeled the "Imp".

It was high velocity when high velocity meant 2500 FPS and with the 70 grain bullet, would do about 2900 FPS IIRC. Almost mythical abilities were touted for the round due to the belief of "hydrostatic shock" as the sole killing mechanism. Unfortunately, some lost their lives going against deadly animals like brown bear, lions and the like with this cartridge.

The bullets are .227" in diameter and not for any .2245" bore rifle. Keep them as collector's items. Since Speer makes .2245" 70 grainers, its not worth sizing these down.

220 Russian and 5.45 x 39 are .215 bore diameter.
Link Posted: 12/12/2001 11:09:10 AM EST
Many thanks, they are going on the shelf as a collector's item, I did mic them and they are .227 dia. I thought something was'nt kosher with these, just goes to show you, you learn something new every day.....
Link Posted: 12/12/2001 11:25:48 AM EST

Originally Posted By Keith_J:
.227 s the bore for the .22 Savage Hi=Power...

220 Russian and 5.45 x 39 are .215 bore diameter.

Major nitpicking here, but the term "bore diameter" would refer to the measurement across the rifling lands and not groove or bullet diameter. Boring (or more likely, reaming) is the process used to create the land surface, not the grooves.

I mainly bring this up because federal laws currently restrict, with a few "sporting" exceptions, ownership of rifles "the barrel or barrels of which have a bore of more than one-half inch in diameter." .50 BMG rifles have a groove diameter of about .510 inch; let us preserve the distinction in terms here.
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