Bored today and have to stay at home. So thought I would go out into the cave and have a play.
I filed 2 55gr 223 projectiles in half today. (obviously these ones are at the cheaper end of the market)
One was a Hornady 55gr. SP (currently used by me for the odd fox) Weighed 4 and all were within 0.2 of a gr of the nominal 55gn
And a pulled 55gn from a S&B round. Weighed 4 and varied from .3 gn under to .6 gr over the nominal 55gn
(Pls note there are some dents in underside of the S&B proj, this damage is due to the way I pulled the projectiles)
Both had lead harder than normal lead,,about the same hardness as my cast projectiles. ( basic scratch test )
- Filing in vice
- IMG_0568.JPG (1.2 MiB) Viewed 5285 times
- Both cut in half
- IMG_0572.JPG (451.31 KiB) Viewed 5285 times
- Both with lead melted
- IMG_0578.JPG (474.07 KiB) Viewed 5285 times
Initial conclusions:
1. The S&B looks to be a slightly different metal & perhaps a little thicker all round.
2. The Hornady seems to have pure copper & thinner at the nose, & I expect would open up a little quicker.
3. Neither have anything built into the design to help hold the projectile together as in more expensive projectiles.
4. S&B projectiles vary a hell of a lot in weight. This would explain my 4" groups from the Sellier & Bellot ammo in my Marlin.
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