The measureI gave for the HP were for the 300 grain.

Not sure exactly what these are in these bullets.

Will measure the depth tomorrow and post it.

The diameter will be 2.5 as in all these.

Great !
How about overall length of bullet for those 235-grainers to go with the hollow point depth ?

235 are 1.225" and the HP is 11mm
270 is 1.356

2.5mm X 11mm hollow point holds 7.42 grains of copper, call it 7 grains.
So if 235-grain Walterhog HP, then 242-grain Walterhog Tiny Meplat FN.

Saeed has created a great bullet.
It needs to be field tested on cape buffalo with Walter's Blaser .375 H&H shooting the 235-gr Walterhog HP at 2850 fps MV.
It will be a more Walterable load than the usual 300-grainers at 2750 fps from the .375/404 Jeffery.
And no rifle deserves Walter as its owner-operator more than a Blaser does.

I have one box of the earliest vintage
Barnes 375 CAL. .375 DIA. 235 GR. "X" S.P.,
the slick-sided, pointy one with flat base.
Sample of one:
Weight 235.7 grains
Length 1.209"
Hollow Point is a square hole 2mm on a side, 14.7mm deep, skived in corners to split bullet into 4 petals.
BC = .400, Barnes published.
I never thought it might do for cape buffalo.
Maybe that hollow point is too deep for use on cape buffalo ?
Shorten the hole depth to toughen up the bullet ?

They make the hole square, supposedly for the petals to break off.

Ours have straight, drilled, hollow points.

The petals break off just the same.

This is not experimenting in a lab.

It is extensive field testing.

I would love to see the test repeated with a 300g TSX and 300g A-Frame at 2500 fps and a 350g Woodleigh HD softpoint at 2300 fps. I have a Rem XCR II in 375 Weatherby so can better those numbers by 200 fps

quote:

Originally posted by Saeed:
They make the hole square, supposedly for the petals to break off.

Yes, skived into 4 petals for splitting open, not so much for breaking off as for a more predictable start of the expansion.
They might retain those evenly divided petals better, hence penetrate less deeply than the Walterhog.
The bigger caliber TSX bullets nowadays have round hollow points to outward appearance,
but they have had the square skiving internally for 4 petals.
I am guessing that GSC did a triangular skiving inside their round hollow point holes for a 3-petal propeller look to the expanded bullets.

You might be able to train Walter to hammer a skive down into your round holes,
take your pick, triangular, square, pentagonal, hexagonal ... never mind.

Ours have straight, drilled, hollow points.

The petals break off just the same.

This is not experimenting in a lab.

It is extensive field testing.

I wonder if the .375"/ 235-gr Walterhog Hollow Point would do better or worse at +3000 fps in the Dubai Bullet Trap ?

No real need to find out.
It seems to have been perfected for use at 2850 fps in the .375 H&H, as is.
Just needs some testing on real buffalo and plains game.
Get Walter to shoot some Walterable game with it.

Well, it seems we really have not learnt anything new here.

Bullets of certain design and build performed as we had expected.

All the good ones like Nosler, Swift and Trophy Bonded performed well.

Normal softy point failed miserable, in this test at least.

I am going to test more bullets in the 300 Winchester Magnum.

I stopped because I wanted to make and have stock of clays and silicone sand mixtures.

I think we have enough now, so hopefully will start on that again soon.

The Dubai Bullet Trap is a good testing medium for comparing both softs and solids for relative toughness and penetration potential.
It is more severe than any game animal,
allowing capture within a few feet instead of 10 feet or more of elephant.
Yet it allows the round nose solids to go squirrely and exit out the sides of the trap,
just like they do in game.
It is better than a simple first-order stack of wood boards which gives advantage to the round nose solid.
Not a live game animal test medium but better in some ways,
it is easier to tell when the bullets have flipped and been traveling backwards due to the "sandblasting" of the bases of the bullets.

Did you test the Failsafes?

quote:

Originally posted by LHeym500:
Did you test the Failsafes?

You did not bother to look ?
Winchester factory .375 H&H ammo, 270-gr Fail Safe was #9 out of 15:
Maybe the one out of three that did not tumble is the one that went 35" instead of 28" ?

Thank you RIP.

The 270 Failsafe did well equaling the 300 Branes in the soft point class. I have a couple boxes stashed away.

Hi, do you have expanded bullet diameter on these tests as well? Maybe not too important for cape buffalo, but for brown bear I believe it is.

So as not to burden Saeed with trivia,
by laying a millimeter ruler on the 'puter screen for a rough estimate, from the view shown,
the Fail Safe expansion above is, left to right, 3 bullets:
186% --- tumbled late and lost little expansion
150% --- tumbled early and lost a petal, expanded less
212% --- did not tumble, went deepest and expanded best

You're right as usual RIP.

Here's the only example I have, never really collected bullets in 4 plus decades of hunting. 300g A-Frame muzzle velocity 2450 fps, impact at 13 yard range, penetrated over 4' of brown bear starting with the shoulder (not the bone), found in the hide of the opposite thigh. Retained weight 299.5 grains, expansion diameter right at 200%. Still little pieces of bear in the bullet even though I've cleaned it.

I am gathering some 30 caliber bullets of various makes to shoot in this test.

Will you be testing the 350gr Woodleigh SP ?

quote:

Originally posted by 4WD:
Will you be testing the 350gr Woodleigh SP ?

No.

Originally I was t4sting our own bullets.

Then I shot others I have.

I don’t have these Woodleighs.

Recent example .375 300gr Nosler Accubond recovered from big Bull Moose. 2300 fps estimated impact speed. Spined it broadside DRT. Moderate impact speed no bloodshot meat loss.

Bullet shattered. Unexpected for bonded core. Recovered bullet weight 209gr/70%. Limited penetration < 1 ft. Crap.

4sixteen,

What a spectacular failure !

Saeed and other. Good work, Lots of info, thanks for posting ,Brian

I am doing another test with the 300 Winchester magnum.

I will post that on the MEDIUM BORE FORUM.

Interesting results with high velocity.

Even Nosler Partitions are falling apart.

quote:

Originally posted by Saeed:
Well, the RWS VMANTEL FMJ RN did the same.

Out of three bullets only one stayed in the box.

Two disappeared by changing directions!

The rifle I am using is a Sako 85 With a 21.5 inch barrel.

I had the same result with the RWS RN solids I got michael458 to test for me.

9.3, 285grn, RWS V mantel RN solid, went every which way but straight once they hit the penetration media.

I have noticed when recovering bullets from game that most turn over against the off side skin, pretty common as the bullet slows down at that point. This applies to all bullets or so it seems to me..most of which I recovered at the kill sight as the skin showed the bullet location under a bump,then recovered the bullet with a slit in the skin and picked the bullet out..