300 WM vs 300 WSM

[KSB209]

I tried searching but didn't find much. Are there any real advantages to either cartridge? I'm kicking around the idea of a new rifle in one of these. Already have a 300 WM so another one would be easy to load for but something different is always fun too

 

[jpd676]

I would say either will do what you want; I had both but sold the WSM. I got 2800 fps with a 208 Hornady in the WSM with a 23" barrel and get 2940 with the same bullet in a 26" WM. If I were building, i'd likely go WSM with a longer throat but for factory i'd go with a WM. Both are great cartridges. My WSM seemed to develop a carbon ring worse than any rifle i'v ever had but that was maybe just a fluke.

 

[FEENIX]

I tried searching but didn't find much. Are there any real advantages to either cartridge? I'm kicking around the idea of a new rifle in one of these. Already have a 300 WM so another one would be easy to load for but something different is always fun too

I have three .300 WMs and two .300 WSMs. The advantage is relative and might depend on the intended purpose and sometimes personal preference. Having said that the .300 WM remains my go-to chambering for antelope to elk size game up to 1K yards.

 

[KSB209]

It will be a factory rifle. Thinking about a Christiansen but would really like a Proof (if I won the lottery). 90% of me says stick with the WM. Cant go wrong and it is proven. Just can't bring myself to go for the 300 PRC yet. I'm old school I guess

 

[scope-eye]

The WSMs have a following, oppose to the 300 WinMag which is a staple and is entrenched. and not to mention the 15gr of powder capascity which really comes in handy at long range or with heavier bullets or both combined.

Dean

 

[Hugnot]

Brass for the .300 WM is easier to buy but you need to accept that belt. Everything considered I would prefer a long throated .300 WSM.

 

[scope-eye]

I had a 300 WinMag that I headspaced of the shoulder instead of the belt, It was a sad day when I finally admited it was shot out it was one of my more accurite barrels. Over the years I have headspaced many of my belted mags off the shoulder.

Dean

 

[Lefty G-gear]

I've had a 300 WM, and a couple short action magnums. - The 300 WM had no feeding issues, but some short action magnums do! - And I'd get a good factory gun instead of a build. - Have been dissappointed with some gunsmiths.
The 300 WM came first = If it aint broke - don't fix it!
IMR-4350 and whatever bullet!


300 WM ammo

.300 Win Mag Ammo

In-stock best prices for 300 Win Mag Ammo | Cheap 300 Win Mag Ammunition - AmmoSeek.com

ammoseek.com

300 WM brass

.300 Win Mag Brass

In-stock best prices for 300 Win Mag Brass | Cheap 300 Win Mag Brass - AmmoSeek.com

ammoseek.com

300 WM RIFLES
$$$ High to Low

Sportsman's Warehouse

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www.sportsmans.com

SAKO makes TIKKA rifles. - I like their bolts and extractors!

Stainless, but in Black!
(I'd put it in a BOYDS wood laminate stock - with the Pachmayr Decelerator pad option.)

Tikka T3X Superlite Stainless Steel Bolt Action Rifle - 300 Winchester Magnum - 24.3in

Tikka T3X Superlite Stainless Steel Bolt Action Rifle - 300 Winchester Magnum - 24.3in - When compromise is simply not an option. The T3x Superlite offers exceptionally high performance which comes in a very lightweight package. The Lite models are equipped with the T3x synthetic stock, and all...

www.sportsmans.com

EXTENDED MAGAZINES!

Tikka T3 300 Winchester Magnum Magazines for Sale | GunMag Warehouse

Buy Tikka T3 Magazines in 300 Winchester Magnum, find the best prices online from top brands for your Tikka in stock only at gunmagwarehouse.com

gunmagwarehouse.com

BOYDS STOCK CONFIGURATOR for whatever rifle.

Build & Price Gunstock Configurator | Boyds Hardwood Gunstocks

Shop hardwood gunstocks for any make, model, and action with the Boyds Gunstock Configurator. Choose from several wood and finish options.

www.boydsgunstocks.com

'Just my 2-cents, that cost 6-cents to make.

 

[Lefty G-gear]

I tried searching but didn't find much. Are there any real advantages to either cartridge? I'm kicking around the idea of a new rifle in one of these. Already have a 300 WM so another one would be easy to load for but something different is always fun too

6.5 PRC

6.5 PRC Rifles | Sportsman's Warehouse

6.5 PRC Rifles for sale online or in-store at Sportsman's Warehouse. Find a full selection of 6.5 PRC rifles from top rifle manufacturers at the best prices.

www.sportsmans.com

 

[AZShooter]

I have worked with both chamberings and if pressed would lean towards the 300 WSM.

The 300 WSM concept was inspired on the .404 Jeffery non-belted magnum cartridge which is shortened to fit a short rifle action and was developed by Rick Jamison in 1997-1998. His patented idea was used by Winchester that led to a lawsuit which he won.

I remember Rick working with his version of the WSM and it shot many powder charges into a tiny cluster. While the short fat concept in cartridges began with the BR cartridges in the 70s, the WSM cartridges perhaps began the lineup of short fat hunting cartridges. John Lazzaroni's Patriot was developed around the same time in1997.

The WSM has a SAMMI spec OAL of 2.8" which makes one think it would be horrible to setup with a long high BC bullet. I made a load for a friend's Browning A-bolt with that exact mag length. Using the 230 gr Berger with RL-17 it shot accurately velocity 2735 fps!

Speaking of accuracy. The new 1000 yd heavy gun world record was done by a 300 WSM:

New 1,000 Yard World Record Set With Berger Bullets

Congratulations to Charles Greer on setting TWO new world records for 1,000 yard benchrest shooting! Charles' record has now been officially recognized by the NBRSA after being thoroughly measured and scrutinized by officials. On February 13, 2021, during the Saguaro 1,000 yard benchrest match...

bergerbullets.com

 

[Lefty G-gear]

6.5 PRC

6.5 PRC Rifles | Sportsman's Warehouse

6.5 PRC Rifles for sale online or in-store at Sportsman's Warehouse. Find a full selection of 6.5 PRC rifles from top rifle manufacturers at the best prices.

www.sportsmans.com

I bought a 6.5 PRC Mossberg Patriot Predator, then put it in a Boyds stock, and I have yet to try handloads. - I'm working out of state. - I also have a stainless Remington Model 7 in 7mm SAUM in a Boyds stock and new DBM metal from PTG. - It had problems feeding with the factory M7 stock and floorplate config. - The new config has center feed magazines = no more problems.
I bought all of this including ammo, brass and primers before the 'plandemic and elect-shun' at their regular prices. - But the 7mm SAUM ADG brass was expensive.

 

[Lefty G-gear]

6.5 PRC

6.5 PRC Rifles | Sportsman's Warehouse

6.5 PRC Rifles for sale online or in-store at Sportsman's Warehouse. Find a full selection of 6.5 PRC rifles from top rifle manufacturers at the best prices.

www.sportsmans.com

This guy compares the 6.5 PRC to his .300 WM with facts n figures

 

[model7fan]

I tried searching but didn't find much. Are there any real advantages to either cartridge? I'm kicking around the idea of a new rifle in one of these. Already have a 300 WM so another one would be easy to load for but something different is always fun too

I would sale the 300wsm and get a 280ai or 7saum

 

[matt_3479]

If I was building I'd probably try a 300. Wsm. Owning both factory options, I like both but the 300 win mag was better set up. The accuracy thr 300 wsm has potential to boast is what would drive me to the 300 wsm. With adg making brass now, you have a good option for brass. On a long or medium action throated long the 215's would be moving 2800-2900fps which is plenty for hunting.