Bullet performance data base

**Heath Robinson** · 16-04-2024, 06:52

Originally Posted by ListerG

I was wondering why both the A Frames seem to have lost a segment. I went back and dug up a pic of a SAF 400g bullet used on a big wildebeest bull quartering to at about 80m out of the same rifle. You can see a ridge on the surface which is an exaggeration of a line that the top of the ramp puts in the bullet when I close the bolt. It may be that it creates a weakness when the bullet impacts and the same has happened on the bullets pictured above…

I would seriously try to figure out where it's going wrong. This kind of thing causes jams.
Slow motion photography might be a great help in figuring it out. Lots of modern cell phones have the ability to do this.

**ListerG** · 16-04-2024, 07:48

Originally Posted by TStone

Interesting, I have never really thought about this happening. What action is your rifle built on?

It’s a CZ 550 magnum action out of their custom shop. The “kink” doesn’t stop cycling but it leaves an impression on the meplat. I’m overseas for a while but when I’m reunited with my rifle next month I’ll take a photo of a cycled round.

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**TStone** · 21-04-2024, 12:14

143gr Hornady ELD-x recovered from a young eland bull.

Hornady Precision Hunter factory 6.5 PRC ammo.
Muzzle velocity ±2920fps.
Range ±250m.
Quartering away shot, entry in crease behind left shoulder, bullet recovered under skin in front of right shoulder.
Eland ran ±30m before dropping.
Recovered weight 76.5gr (53%)

This is neither the bullet nor the caliber I would recommend for hunting eland but the hunter using it is a very good marksman and an experienced hunter who was willing to pass up a shot unless he got an opportunity from an acceptable angle.

**TStone** · Today, 16:35

180gr Nosler Partition from a .300 win mag @ 2950fps.
Black wildebeest bull facing away at a steep angle @ 260m.
Retained weight 103.5gr (57.5%)
Bullet hit far back on rib cage and broke spine in front of shoulders.

**TStone** · Today, 16:39

150gr Remington Core lock factory load from a .30-06 @ ±2900fps
Wounded impala ram walking away from shot at an angle, at 50m.
Bullet hit behind shoulder and was recovered under the skin between neck and opposite shoulder.
Retained weight 74.0gr (49%).

**TStone** · Today, 16:42

180gr Nosler Partition from a .300 win mag @ ±2950fps.
Blue wildebeest bull, quartering to at ±250m.
Bullet hit on shoulder, recovered under skin behind opposite rib cage.
Retained weight 128.9gr (71.6%).