300wm bullet selection

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Aabradsh

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Hey guys

I’m having a rifle built in .300wm. It’ll be the first .30 magnum I’ve owned. I’ll mostly be hunting whitetail and moose, with potential for western hunting in the next few years.

I’ve been primarily hunting with and loading for a .308win for close to a decade now (among a couple other calibres) and have had good luck with a variety of bullets, but my favourites are the 165gr SST and the 150gr Interlock. I did load 165gr Accubonds, but moved to the Hornady options due to cost increases.

I’m thinking for this .300wm, I’ll likely bump up to a 165gr Interlock on deer, but may go back to a bonded bullet for moose. Would I be better served with 180gr bullets in either of these options, or have people had fine results with 165gr?

I’m open to other suggestions, but typically stay away from all-copper bullets because I’ve found them finicky to load in the past.
 
I've used 180gr partitions, can't really get more practical for moose. I buy cheaper speer hot cores for practice, they shoot pretty close to the same point of impact for a third the price. I shoot a 308 norma mag. pretty much the same. Shoot a few of the partitions right before your hunt to dial them in. Best of luck hunting!

Bass
 
I agree with B A just above I used the whby 300 very close, and the same bullets.
They work fine for moose and deer or anything else.
The difficult part is dealing with the recoil of the 300s it takes practice to be accurate with the recoil.
Enjoy
 
I wouldn’t bother with anything lighter than 180s in the Win Mag.. There isn’t a deer or moose that going to shrug off a 180 Interlock, for low cost options.
The bit of velocity you gain with 165s doesn’t last.

For powder I usually start with H1000, but 7828, either of the 4831s, RL22 are all anxious to please. It’s an easy cartridge to load for. It really shines with a magnum length mag box
 
I have used 300 win mags for years. Best all around I have found is 180 grain partitions.

That being said, I’m currently using 200 grain partitions, but with current prices, that will change when my supply runs out.

If using a harder bullet like a Barnes, or other all copper drop down to 165 or even 150.
 
Had a 300wm for 30 years until I had a brain fart and sold it. Always used 190btsp Hornaday ( not available anymore), zeroed at 300yds gave me practically a 400yd point and shoot moose gun. Took at least 25 moose with it. If-in I was shooting it again it would 200edlx or maybe 178 depending on witch grouped better.
 
Have owned and hunted with a .300 Mag for well over 40 years. I can add my vote for 180 grain Partitions. Have used most bullets on the market. Keep going back to the tried-and-true Partition. Consistent and reliable. As others have already said, the 180 is likely the best balanced bullet weight for the caliber.
 
180 gr bullets are the norm with the 300wm, 180 BTSP or SST's budget priced bullets work fine on deer and moose if thats what you want to shoot.
The lighter cup and core bullets with high muzzle velocity might not be the best choice for the 300wm unless you down load them.
Its hard not to like the 300wm, congrats on your new rifle.
 
215 Berger Hybrid in mine. Accurate and good terminal performance. My results have not been explosive, way more controlled expansion than I expected but excellent performance either way.
180 Partition is on the other end of the spectrum but also good.

Depends on what you want out of a bullet
 
180gr is my go-to in 300wm. 180gr anything, just works in 300wm. Lighter bullets go faster out of the muzxle, but don't really gain any advantage by it. 200gr bullets work nicely also.

If you want to shoot +1000 yd matches, then there are better cartridges available now.
 
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Used the WM and WBY a ton years ago. I settled on the 200 partition. Don’t shoot anything up close with standard bullets. Back then H4831 Rel 22 and in the WBY 7828. Not up on the new stuff, went to the .338/210 years ago.
 
Aabradsh said:
Hey guys

I’m having a rifle built in .300wm. It’ll be the first .30 magnum I’ve owned. I’ll mostly be hunting whitetail and moose, with potential for western hunting in the next few years.

I’ve been primarily hunting with and loading for a .308win for close to a decade now (among a couple other calibres) and have had good luck with a variety of bullets, but my favourites are the 165gr SST and the 150gr Interlock. I did load 165gr Accubonds, but moved to the Hornady options due to cost increases.

I’m thinking for this .300wm, I’ll likely bump up to a 165gr Interlock on deer, but may go back to a bonded bullet for moose. Would I be better served with 180gr bullets in either of these options, or have people had fine results with 165gr?

I’m open to other suggestions, but typically stay away from all-copper bullets because I’ve found them finicky to load in the past.
Click to expand...
Moose Hunting is my expertise!
300 Win Mag
I have had good luck with 180 thru 200gr for moose.
Particularly the Swift A Frame and Nosler Part with Reloader 22 powder
Kinda favor the 200gr in weight for moose and keep my shots under 500 yards.
For a New Powder take a hard look at Ramshot Grand with the 200’s for 2026.
 

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I sure find myself using a lot of 180 Ballistic Tips and Accubonds in various 300s. They generally want to shoot, and I like what they do when they arrive. I’ve shot scrub bull and asiatic buffalo with a 300 RUM with the 180 Accubonds, then came home and popped a coastal grizzly with the same rifle. You wouldn’t think a grizzly could die that fast, but it dropped and didn’t even wiggle.
Shot moose with both the 180 Ballistic tips and Accubonds with 300 Win and WSM. They die just like a deer.
 
I punched a hole through and through an antelope with Barnes solid bullet in a 300WM. Never recovered the little guy. I found a pebble with its blood and kept it as a reminder to chose better bullets. Like the others, the best bullet is the one that immediately deforms and drops its energy. I like 165 Partitions for WT on the prairies.
 
215 Berger Hybrids for me. Not your typical Berger performance, decent wound channel and entrance and exit holes. - so far so good! Accurate as all hell as well
 
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