Magnum Rounds Expand Too Fast

CL2000

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I am totally new to this site and the whole forum thing in general, so sorry if I do something wrong.

Hello, I am a hunter from Newfoundland, a magical place where you can shoot a moose with anything from a .243 all the way up to whatever the biggest gun you can legally shoot is anymore. I personally own several firearms chambered in calibers legal for moose, some more appropriate than others, but thats besides the point. I like to test all of my guns with my chosen ammunition in various penetration/expansion tests. This isn't the most scientific thing in the world as its usually shooting bottles of water and junks of wood, as well as seeing the terminal ballistics some of these rounds have on various game animals, including moose.

My pride and joy is a Winchester XPR chambered in .300 WSM, it is a wonderful rifle, perfectly accurate, very light, and plenty of power. However, this fat boy of a rifle round has one draw back... It expands the bullets almost too fast in my opinion.

In short, I shot a half descent cow moose last year at about 200 yards or so, between the angle and the step she was taking, the bullet ended up in the top of her front left limb, breaking the bone (idk bone names that well) Little to worry, apparently there was plenty of energy to knock her flat on her ass, literally, she was able to toss and turn a bit before laying flat on her side. By the time I crossed our infamous rough terrain she was no longer breathing, to be careful I popped a round in her head.
After it was said and done, the bullet was found lodged on the bone, she apparently died from the shock of the hit and not from any direct damage to the vitals. It is reassuring to see my gun is packing that much power, but comparing this bullet to some of my other recovered bullets, I found that this 300 wsm 180 grain expanded MORE, and became more like a thick pancake than a mushroom, at 200 yards in the upper arm than a .270 150 grain at ~75 in the spine. Both are equally cheap bullets, probably better suited for deer, but I find the lack of penetration disappointing and I cant help but want to blame the fast expansion.

Is there a easy, cheep solution to this problem?
Premium ammo is far too expensive, even in cheap calibers, to justify the expense for me, and there is also the fact that they just might not preform well in my firearm, as of course, every gun seems to have its favorites. With that both in mind, its too expensive to buy premium ammo.
 
Bullet construction is everything when it comes to expansion. With a thick enough jacket and good manufacturing techniques a bullet may be kept to minimal expansion at any velocity you could ever possibly attain with .300 WSM or .270, even with solid bone hits.

So first question, what bullet were you using on the moose?
 
I'm gonna guess he's using a cup and core bullet... if you're not willing to buy (or load, rifle reloading pays for itself pretty quick) premium ammo then you'll have to live with the results of cheap ammo...
 
Solid copper Barnes TTSX

The seem to shoot well in just about anything, and will hold together even with the biggest magnums

Even if you have to spend $7 a round, still cheaper than losing moose because of a cheap bullet....
 
Expansion is determined by bullet construction, impact velocity and shot placement.

If you don't want a bullet to expand as much and you are using factory ammo then you need to use a bonded or monometal bullet.

Premium ammunition is cheap compared to the cost of a hunting trip, but hunters always seem to complain about the cost of ammo.
 
i shoot a rem 700 sendero 7mm i reload my own hand loads with 168 berger long rang vld tips and they r not opening up on a white tail at 2-400 yards has anyone als had that problem yet this was my problem last year still havnt gotten around to find a differnt load for this year
 
Get a premium bullet that shoots to the same point of aim or close enough to your cheap stuff and only shoot the good stuff when hunting.
 
Get a premium bullet that shoots to the same point of aim or close enough to your cheap stuff and only shoot the good stuff when hunting.

Even if it's off by a few inches you can still sight in with the good stuff and then practice with the cheap stuff and just factor in that difference in zero.
 
Premium bullets, is the way to go and really it is cheap compare to loosing game or excessive meat damage!
 
bullet construction velocity and placement

Now, as you are using factory fodder, and the budget is limited, one way to reduce velocity is to go with a heavier bullet. Can you find a 220?

Bullet placement. If you shot for the lungs, it's likely you wouldn't even find the bullet, and the meat wasted would not be an issue, nor would the expansion.
 
The bullet you shoot at your game is probably the cheapest part of your hunt. I load my .243 with the TTSX. Load development cost me some money. I then loaded 100 rounds of hunting ammunition and I’m set for a long time. I load cheap plinking bullets in a similar grain for shooting at the range. 10 years ago I bought 20 boxes of sabots for my rifled shotgun once I found out what load it liked. I’m still good today. Spend a few hundred to figure out what your rifle likes and then lay in a supply of ammunition sufficient to last you a good long time. This is what I do with all of my dedicated hunting rifles. I also factor in annual range checks. Any gun that I just shoot for fun I develop a load with cheaper projectiles that hits to similar point of aim. Benefits of reloading!
 
Your probably right there, I was using federal power Shok In the 300, and it was Winchester super x in the 270.
As I said, both equally cheep bullets.
 
Your probably right there, I was using federal power Shok In the 300, and it was Winchester super x in the 270.
As I said, both equally cheep bullets.

Yep, and both are also non-bonded copper jacketed lead bullets, which are notorious for expanding too fast, to the point of near-explosion, when pushed fast or when sent into heavy bone or muscle.

Switch to a good controlled expanding bullet and you'll be fine.
 
I'm gonna guess he's using a cup and core bullet... if you're not willing to buy (or load, rifle reloading pays for itself pretty quick) premium ammo then you'll have to live with the results of cheap ammo...


Unfortunately your probably right there. It wouldn't be so bad if I could just get 5 rounds of a few expensive loads to test instead of spending a ton on a full box just to test.
 
Solid copper Barnes TTSX

The seem to shoot well in just about anything, and will hold together even with the biggest magnums

Even if you have to spend $7 a round, still cheaper than losing moose because of a cheap bullet....


I cringed at that price man, if I didn't shoot for fun too it wouldn't be so bad, but that's a lot.
 
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