Bullet Performance Database

Jon Glajchen

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Swift Scirocco 270 win 130 gr reload at approximately 3050 fps. Black Wildebeest shot at 270m.
The bullet broke the near shoulder and penetrated through the vitals and was recovered under the skin on the opposite side. Weight retention was 118,7 gr, equating to 91%
 

shootist~

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@Jon Glajchen
Thanks for posting. There is very little data available on the Swift Scirocco bullets.
 

colorado

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They are a little soft for my taste, I even steer clear of the accubonds, though many people swear by them. I like Nosler Partitions for thin skinned game, A-Frames and TSX's for tougher game.
 

Longwalker

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I shot two black bears yesterday, troublemakers damaging stuff at my sister in laws cottage. I was shooting my Beretta double rifle, 9.3x74R, Norma Oryx 18.5G factory loads. Both young male 100 -120 KG bears were centre chest / heart shots from about 120M and 80 M. The effect of the shots were immediately apparent, both did a quick death dash into cover but for only a short distance. I could easily hear the sound of the impact in both cases. Both shots exited. The second bear ran into very thick cover and still moving slightly when I found him, so I put and insurance shot from behind, through mid-back severing the spine. This is the bullet, recovered from the skin at the base of the throat area. Very impressive, after going through all that spinal bone and the sternum. Double diameter expansion with 95% weight retention and good penetration. I like Oryx bullets!

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inkonkoni

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This was fired from my friend's .270 when he killed a black bear last week. It definitely was effective as the animal only took 1 step and then 'fell over like a tree' as he put it. Before the hunt he had asked me for suggestions for ammunition. I recommended something loaded with heavy, bonded bullets. These Sako Hammerheads fit that description. However I'm not impressed with how the bullet held together (or failed to, rather). It retained 30.8% of its weight. In the close up picture I was trying to show how it basically lost its core, with a small amount of lead still bound to the jacket. At the end of the day, it did result in a clean kill, but I don't believe I would recommend these on heavier game such as elk or moose.

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This is quite shocking. In 2018 my brother and I Hunted the Umkomazi river valley.

I shot several Kudu and Impala with 180gn Sako Hammerhead bullets out of my 30-06.

Not a single one recovered even on some raking shots.

Perhaps at the shots being mostly 180m + the velocity was low enough to keep then together?

Very interesting though.

Shoot Straight!
 

Aussie_Hunter

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Calibre: 500 Jeffery
Type of bullet: Woodleigh RNSN Weldcore
Muzzle Velocity: 2380fps
Distance of shot: 20 metres
Impact Velocity: 2330fps
Original weight: 535 grains
Recovered weight: 506.8 grains (95%)
Expansion: Just over 1" (doubled original diameter)
Species: Brumby Stallion
Shot placement: Entry left hind quarter, recovered just under the skin behind right shoulder, around 1.5 metres of penetration, mind you I don't think the bullet encountered any solid bone in it's travels. Still extremely impressive penetration, expansion and weight retention for a projectile travelling well above its recommended impact velocity.

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Have you ever tried the 275 PPSP in your Whelen? I'll be running the 225 ABs in my Ackley Whelen this year, but I'd like to try the 250s and 275s as well, just in case I ever decide to hunt something bigger. I did run some of the 310 RNs through it, and penetration is pretty amazing, but not something I need, for what I hunt.
@5shot
I only recover 2 bullets in Namibia. The 250 grain Hornaday roundnose left a golf ball size exit hole in my Oryx. The 250grain Woodleigh PPSP would be even better being bonded.
Bob
 
 

 

 

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