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#193498 - 07/10/18 10:50 PM 454 Casull Bullet Test - 240gr XTP & 260gr Part.
pab1
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Registered: 01/18/04
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I recently tested a couple .454 Casull rounds. First was the long discontinued 260gr Nosler Partition. I also tested some 240gr Hornady XTP/Mag bullets. Both were loaded over W296. I used a 12 inch Encore with a ported barrel.



First I ran the loads across a chronograph. The 260 gr Partitions came in at 1905fps. The 240gr XTP/Mags are running 1980fps. With the closed breech and long barrel these velocities are close to 460S&W revolver velocities for bullets of this weight. I posted a .44 Mag bullet test last week using a 12 inch barrel. The velocity of both .454 Casull loads is about the same at 100 yards as the 240gr SJHP .44 Mag load velocity at the muzzle. That is some serious power!

I also tested the 240gr XTP/Mag bullets from a 7.5 inch BFR revolver. It came in at 1740fps which is about where the same load fired from the Encore would be at 50 yards. Unfortunately I did not have enough jugs to test the Partition at revolver velocities.

Next I tested the bullets. Here is the test setup. I start with a water filled milk jug backed by one half inch thick plywood, then 1 inch of glossy catalogs followed by more milk jugs. Nothing can replace actual flesh and bone on game but I try to simulate it with the catalogs and plywood. The plywood definitely takes a toll on the bullets.



I fired the Partition first. I have tested .458 inch 300gr Partitions fired from a 12 inch .45-70 in the past and was impressed with their penetration. The .451 inch 260gr version did not disappoint. It was recovered in the 6th jug which made it the winner for penetration. It left a .624 inch hole in the plywood and completely lost the forward portion of the bullet. The recovered weight was 210gr (losing only 50 gr) and it expanded to .543 inches at its widest point. It just goes to show that combined with the high velocity this is a fairly tough bullet test.

Next up was the 240gr XTP/Mag fired from the 12 inch Encore. I was surprised to find it in the third jug. The energy it transferred to the jugs, catalogs and plywood was impressive. It made a 1.656 inch hole in the plywood and the jacket and core separated. The recovered weight was 146.3gr (losing 93.7gr). The jacket expanded to .893 inches and the core expanded to .613 inches at its widest. I have used these and the 300gr version on deer from a revolver and have been very impressed with their performance.

Next I tested the 240gr XTP/Mag load from a 7.5 inch BFR. I was out of catalogs so I used the combined saturated catalogs from the previous tests with a thickness of about 2 inches. The jacket/core stayed intact. I hit a little low on the jug which I think forced the plywood up on impact. The plywood broke without a hole through it. As with the other two tests it left an impressive hole in the catalogs. It was also recovered in the third jug which again surprised me. The recovered weight was 186.8gr (losing 53.2gr) and expanded to .701 inches at its widest point.

Here is a look at the before and after on these bullets. The Nosler is on the left, the 240gr XTP/Mag fired from the Encore is in the center and the XTP/Mag fired from the BFR is on the right.



Here is a look at the base and petals of the 240gr XTP/Mag fired from the 7.5 inch BFR. IMO its a thing of beauty!



One thing that surprised me was that the particle board base supporting the jugs broke under the first jug when testing the 240gr XTP/Mags from the Encore. I have tested .44 Mag, .375JDJ and .45-70 with a variety of bullets using a similar setup. I have never had a particle board base break with any of those rounds. It goes to show how much energy is transferred to the target with that combo.
_________________________
Experience is the best teacher, hunger good sauce.
Osborne Russell Journal of a Trapper



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#193501 - 07/11/18 06:16 AM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: pab1]
sw282
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it would be interesting to see how a 250gr KEITH cast boolit would perform in these tests

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#193503 - 07/11/18 07:31 AM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: sw282]
45MAN
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Registered: 08/13/17
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pab1: WONDERFUL STUFF, MANY, MANY THANKS.
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#193513 - 07/11/18 04:54 PM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: 45MAN]
csherrill
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Registered: 10/02/13
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Loc: Tennessee

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Thank you. Enjoyed the information.

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#193517 - 07/11/18 07:53 PM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: csherrill]
jamesfromjersey Moderator
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pab, your recovered 260gr Partition mirrors those I have recovered from game.... Including lead front piece....The bottom pic is another recovered 260gr partition that weighed an even 215grs. I don't think I ever used the 240gr XTP...its a real sin that Nosler discontinued the Partition handgun bullets....
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#193518 - 07/11/18 09:43 PM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: jamesfromjersey]
45MAN
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Registered: 08/13/17
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I HAVE A FEW BOXES OF WINCHESTER 260gr PARTITION GOLD AMMO FOR THE 460, AND A S&W PC 7 1/2 INCHER THAT NEEDS TO BE USED FOR SOMETHING, THIS MAY END UP BEING MY HUNTING COMBO FOR THE NEXT FEW MONTHS.
_________________________
"ADAPT OR DIE". I USE ALL CAPS, NOT BECAUSE I AM YELLING, BUT BECAUSE IT IS AN OLD HABIT FROM MY ARMY DAYS, PLUS IT IS EASIER TO TYPE AND READ.

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#193522 - 07/12/18 08:22 AM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: 45MAN]
Randy M
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Registered: 07/04/11
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Loc: New Braunfels, TX

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Great review and information. Thanks for posting it up here.
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#193534 - 07/13/18 02:21 AM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: jamesfromjersey]
pab1
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Thanks everyone!

James, that Partition looks perfect! The condition of both the one I recovered and the XTP/Mag fired from the Encore show how tough a test this is. The plywood really takes a toll on the bullets!

I forgot to mention this but if anyone is wondering I'm not "hot rodding" the loads for maximum velocities. I'm below maximum charges listed (and max charges for my gun) according to both Nosler and Hornady data. My Nosler manual shows that they used a 12" Encore barrel for their data. My velocities (with a ported barrel) come in a little lower than what they list. Hornady shows that they used a 7.5" barrel for their testing. My 7.5" BFR velocities came in a little higher than what they list. For the most part I'm right in the same ballpark with what the manuals list.

It would be easy to dismiss the 240gr XTP/Mag fired from the Encore since it shed so much weight and the jacket/core separated. I don't feel it was a failure at all. While its penetration didn't come close to the Partitions, its energy transfer was much more noticeable.

Not only could this be seen on the water filled jugs but on the plywood as well. The Partition left a .624 inch hole in the plywood. The XTP/Mag produced a massive 1.656 inch hole. It hit the back of the third jug for about 20 inches of penetration. That's more than enough for anything I'll be hunting, especially considering how hard the plywood is on bullets. These have always impressed me on deer.

This pic shows the difference between the two bullets as they passed through the plywood.

_________________________
Experience is the best teacher, hunger good sauce.
Osborne Russell Journal of a Trapper



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#193656 - 07/23/18 12:09 PM Re: 454 Casull Bullet Test - 240gr XTP & 260gr Part. [Re: pab1]
Snyd
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Registered: 12/17/09
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Cool! what distance were you shooting?

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