question was asked by a few of my compadres.

I'm a meat and potato type of guy (30-06, 300 WM) so I've no experience in their use and long range accuracy/consistency.

Long being defined herein as >400 but probably less than 800.



*the consensus was they weren't really popular for that type of hunting...

a 300 saum or wsm shooting 180 accubonds does quite well on the longest range i've shot it - 600 yds

Here's a great article on a 7mm WSM used for long range hunting:

http://www.6mmbr.com/gunweek064.html

And yes, I have a .300 WSM for longish range hunting myself.

............In the field, on any of the same game, and given the same distances, a 300 WSM will do anything a 300 Win Mag can do. Did own and reloaded for a 300 Win for 35+ years, so I know this round as well as anyone can. Own a 300 WSM for the past 3+ years.

In the 49th Edition Lyman manual under the 300 WSM, Lyman states (paraphrasing), that the 300 WSM runs on average, only 30 to 50 fps behind the 300 Win (24" barrels) according to their test results, while using around 8% to 10% less in powder in the process.

After the 300 WSM was first intro`d about 8 or 9 years ago, a general opinion formed by a few writers, was that when using bullets heavier than 180 gr, there would be more or a substantial velocity loss vs the full length 300 Win.........That is absolute BS, bunk, horsecrap, or whichever term you prefer to use.

A shorter action 300 WSM rifle, allows for less scope tube length when mounting a scope, allowing for a more compact scope option should one choose that route. Also, lighter rifles are becoming more the trend (easier in the field) these days, of which the 300 WSM rifles are generally lighter than are the 300 Win rifles.

So your compadres can feel just as confident with a 300 WSM in bringing home the bacon, elk meat, moose meat, bear meat or whatever meat they happen to be going after.

RWE,
I see the 300WM being almost as good as the WSM esp. if your are into traditional stuff, eh?.
Yes that is a dig.
Having said that I have no need for either 300's so I bought a used New Haven .270WSM from a fellow who just bought a new FN .270WSM.. I have handled both and I like the Ultimate Shadow stock better..

I have a 300 Rem SAUM, 7 Rem SAUM and a 300 WSM. All things being equal, it seems that the SAUMs are more accurate, and these are with standard model 7s versus a full custom. I would not hesitate to shoot out to 600 yards with mine, and thats a looooong way for me.

I'm using a 7WSM very similar to the one in the 6mmbr article. It's so close to the 7RM ballistically that the difference isn't worth mentioning. It has plenty of power for both elk and deer out beyond where most people can hit anything. I've never been able to figure out why the 270WSM did better than the 7WSM. The 300WSM doing better makes a fair amount of sense because Americans love their 300's but the high BC bullets available for the 7WSM really make it shine beyond the 270WSM at extended ranges. My 2 cents.

quite enlightening.

I guess brass is the limiting factor if I guy wanted to fire one up. Plenty of 30 cal and 7mm bullets to choose from.

What tapers are you guys using on your wissums for LR?

No, it isn't.

Norma makes great WSM brass. I use their 300wsm brass for my 7mmWSM and 300wsm's

I have 26" heavy magnum contours on both of my 300wsm's. The 7mmWSM has a 28" Varmint contour with an 8" twist for 180g VLD's and 200g Wildcats.

GG are you using factory tubes?

Every 300 wsm I have had was a good 100-150 fps behind the 300 win mag.If I where choosing between the two it would definitely be the 300 win mag.There are quite a few guys running 7mm wsm's at long range but it just doesn't have the power I like way out there.

No, all my actions are small shank, long action Savages.

26" #5 Contour Hart in 300wsm

26" Heavy Magnum Krieger in 300wsm

28" Savage Varmint Shilen in 7mmWSM

RWE,
Used a 7WSM with 162 A-Max to take buck antelope beyond 800 yards.
E

Me either. With the available bullets, the 7 is so much more versatile.

7mm WSM

Thanks, but I didn't mean that literally. I just meant I personally prefer the 7.

Cross, what bullets/loads are you using?

My 7 Saum is very accurate with a 162Amax, and I target shoot with it at >400 on a regular basis. I would not hesitate to take a shot at deer between 4-600 yards, if the opportunity presents itself. Also, you get 3 in the belly with a Saum.

i am running a 300wsm in a custom winchester l/a push feed.
3 groove lilja barrel and an awesome walnut thumbhole stock.
it's wearing a 6-18 with varmint dots, and is right on the money.
with 165 grain sierra's, it'll eat a ragged hole.

shot a 6x6 bull in colorado a few years ago with my other 300 wsm at 402 yards. the 150 tsx blew right thru him.

i like the wsm's, and would do a 7mm or a 6.5 if i were to build another rifle.

it now wears d.d.'s

You're right about that stock... Terrific!

I've mostly used 150 Scirocco II's. Even though they're lighter than I prefer, they worked well in my original 7WSM. I was getting ~3250fps with 62gr of H4350 and Fed GM215Ms. I shot several deer and elk with them and they proved tough enough to go through a 6 pt bull at 100 yds (3 for 3 shots) and soft enough to mushroom nicely in another bull at 750 the same year while penetrating through the chest cavity to the hide on the far side. Pretty small sample set right there but good results and good results with everything I shot with them.

My best accuracy was with 160 Accubonds. I think I was using H1000 for that load but I'm not entirely sure. That load gave me just over 1/2MOA with a factory Winchester Coyote at about 3" groups at 500 yds. I just had my 7WSM rebuilt and now it has a Hart #4 on it. My first ladder test load is for 168 Berger Hunting VLDs using H1000. I've had good success with them in my 7mm Remington magnum. I know there are many people who don't think much of using bullets originally designed as target bullets but they seem to work well for me.

thank you.
here the other side.


and a just cuz !

Nice looking gun, splat, but the bolt is on the wrong side.


GearGrinder, I'm guessing that your custom barrel folks didn't give you any static over putting wizzums in a small shank.

If I were to go with one, I think I would prefer to do the same with a long action and modify the mag or make it a single shot. I'm still a 30cal snob, so it make take some effort to go 7mm.


Push feed or CRF on your savages?

i had the compromise rifle built last year, a 7-300wsm. wanted the slightly longer neck to stabilize 180gr berger VLD's. shoots lights out to 600yds and with a better man behind the gun does fine at our local 1000yd range. brass prep takes a while but thats part of the fun.

Yep. Have stretched the legs on my .270 wsm out to 700

I've had a TikkaT3 and Kimber 8400 Montana both in 300 WSM. With some range work and powder testing I was able to get them to safely push a 180TSX at 3130fps. Guess probably that would throw a ball a fair distance. Each one shoots under or up to an inch and half at 200 yds. Never shot very far with them. They each will punch a hole diagonally through a Newfoundland bull moose at a measured 250+yds.
Long range with the 300WSM? This ole guy wouldn't hesitate.

Jim

The 7WSM is amongst my Favorites............

Understandable!

I've a #5 1-10" Hart at 24",chambered 300WSM in an HS DBM fed s/a 700...that do in fact shoot amazingly.

HATE it,compared to my 7Whizzums.............

Where can you get 7mm WSM Norma brass from?

Why would you WANT Norma?...........

No, no grief. I got the 7mm as a prefit from Shilen through Jim Briggs (NSS).

The Hart and Krieger I threaded and chambered myself.

I've also built two 338 Edges on small shank actions. No problems.

All of mine are push feed. They all feed and eject fine.

They don't make it. You can use 300 or 270WSM Norma brass to make 7mm though. It just takes a simple fireform. Easy as making an Ackley. I prefer to use 300wsm and neck down. You can set your dies to make a false shoulder, load a bullet, powder,primer and fire. Whalla...7mmWSM Norma brass.





Because it's better than any other WSM brass available. Until Lapua makes WSM brass, Norma is as good as it gets.

I made a 300WSM using a used Musgrave 1:12 twist barrel (cheap bastard aye) but it shoots 180's like a demon, I have now sold it to a mate and he has taken feral goats out to 900 yrds with it.

I am now running a 7mmSAUM and it has energy past 1000yrds with the right pill. Yet to streach its legs though

And Norma brass rocks with that, tight bolt lift and next to no brass stretch....good for when you do a ladder test as I dont have to throw the hot ones away like I have with some

Not apples to apples. I think the same 150 grain brand of bullet 270 has a higher BC than a 150 grain 7mm right?

Sort of. When shooting Nosler Accubonds, they list their 270 cal 140 grain bullets have a B.C. of 0.496. They list their 7mm 140 grain bullets at 0.485. These are close to each other and given that the 7mm is going to have a larger cross-sectional area you should get a bit more speed from the 7mm when launched from similar powder capacities. My guess is you'de never be able to find any measurable difference in performance.

What I was referring to was that you can get off the shelf higher BC bullets, like the 168 and 180 Bergers, and 160 Accubonds which will exceed any general off the shelf 270 bullets. Of course, you could get some Wildcat 200gr 270 bullets and blow my whole argument out of the water but these bullets aren't easy to find nor are rifles with enough twist to stabilize them. You just can't find much in the way of 270 B.C.s that are in excess of 0.55 or 0.6 like you can with a 7mm. These differences are largely academic until you're out from 750 to 1000 yards anyway.

Agreed.
The 270 is what it is limited at 150 unless custom. When looking at off the shelf ammunition your not going to see the difference between the 270 vs 7mm because the bullets that make the 7mm shine aren't being offered. The bergers aren't being offered and the 160 gr bullets with a 10 grain increase doesn't separate it enough. I think the reason the 7mm didn't take off is because it is between the 270 and 30. The general public is buying off the shelf guns so the middle child gets ignored instead of thinking it could be the best of both worlds if reloading.

The 7mm was never lost on reloaders. We have kept the 7's alive for years. The 280 Remington being number one of that group.

Being a middle child, I can relate to the 7's...

I shoot a browning A bolt 300WSM I get .375 or less inch groups all day at 100 yards. most accurate rifle in my collection. it has a 28inch barrel and mv is close to 300 Weatherby. I have a very fast barrel

Custom tube?

As do I in my Sako 300 WSM Finnlight. It will push 150's to 3400 fps. I was shocked when I saw that on the chrono. I was also happy

That makes barrel makers even happier.

My favorite 7mm now is the WSM. I don't even own a 7mmRM any more, but I do still have a 7mm-08 in a Mannlicher stocked Mauser and a 7mm Mauser carbine. The WSM seems to be the best of all the 7mm/.280 worlds for me. As for .300's, I have several, but I tend to lean to the WBY. I am grooming a .270WBY in a Ruger #1 for possible long range use this year with the addition of a new Minox scope. Good luck.

Nosler makes a .277 160gr partition. I was going to load some up for elk in my 270 wby.

The new heavy gun 1000yd group record is 2.85" for a ten shot group. All of them fit in the 10 ring also. It was shot with a 300WSM and 210grn. bullets.
Butch