Home Forums Hunting & Shooting Hunting Rifles Practically speaking is there anything a 300 WBY Mag can do that a 7 Rem Mag can't?

I totally agree^^^^^



JMR - I don't remember exactly how many 7 RM I've had but several plus 2 that friends had.

I/we could get 3100 fps with 160s w/o dangers.

MAYBE you had a slow barrell? I've seen 1 of those a friend had, a popular brand, SLOW, wouldn't beat a 270 W.

MAYBE you had a slow lot of powder? That happens frequently.

Maybe some other problem. I guarantee you, your results are not typical..

Jerry

Had 2-7mm Rem mags and could not approach what you are getting with the 160's,2900+ was about the tops. The rifles had 24" barrels.

Still killed whatever I shot with them,but would've liked a bit more "oomph."

A 7 Rem Mag loaded to full potential is a solid step up over a 270 or 280.

The 300 Weatherby is clearly the more powerful of the two and should be.It moves 200 gr bullets at almost 3100, 180 gr.'s at app 3200,burns over 80 gr of powder to do this stuff,kicks like a mule while still being manageable for some;unmanageable for others. Rifles are generally heavier. It's a wonderful killing cartridge and should be classed with the mediums like the 338;not with anything smaller IMO.

The 7 Rem Mag was "invented" because a seasoned Wyoming outfitter observed that many of his client/hunters did not shoot a 300 Weatherby very well or very precisely due to excessive recoil.So he necked down a 338 Win Mag to 7mm, and came up with a cartridge that hits like a 30/06 and has a flatter trajectory than a 270 or 280 or 30/06 .A 7 Rem Mag is a solid step down from a 300 Weatherby in recoil.People shot it well and killed stuff.



None of this was the question; the OP knows what he's doing and what his rifles deliver for velocities.By "leaving anything on the table" I assume he means..." can he kill the game he listed cleanly and quickly with a 7 Rem Mag to the distances he stated?"

IMHO the answer is "yes".

Does he "need" the 300? I dunno. Probably not.

I'm going to derail this thread by pointing out that the 300 Winchester Magnum seems to be far more poplar as an all-arounder in Alaska than either of the rounds in question.

Klik: That's understandable. The 300 Win Mag is a no brainer.

EHNM -

I'm digging thru my chrono notes,and 2 loading books at the time I'm posting this..so bear with me..........

NOTE -- this data was obtained in the 1980s -

My chrono notes: all 160s & N Ps.

Rem 700 Classic 24" bll.

IMR 4350 - 64 grs - WW brass WW primers---3120 fps ACCURATE
IMR 4831 -66.5 G - WW brass WW primers---3162 fps

Friends B B R - 24" bll.

IMR 4831 - 67 grs. Rem Mag Pr, 3129 fps.
IMR 4350 - 65 grs.-------------3135 fps.

***I have WAY too many records to go thru all: I did NOT pick out the 'highest' for this post.***

ALSO NOTE - long case life. UP TO 10 firings at least.

BOB HAGEL - P 190 "Game Loads & Practical B.... ....
( I KNOW -spare me the lectures <GRIN> )

N 205 - 68 grs --3150
IMR 4831 68 grs - 3145
H 4831 69 hrs --3115

H 870 --80 hrs - 3134 * H 870 did not do this well for me.*

Sorry I've run out of time NOW, will check more later.

I/WE never had any problems with the loads we SHOT.

Jerry

I can't speak to the 30, as the only one that I own is a .308.

I easily get 3000+ fps with my 26-inch 7 mags and 160 parts. My go-to load is Re 25 for 3004 fps. This is not a hot load. A moderate load of Re33 gets over 100 fps more velocity. No elk that I have shot ever needed that extra 100+ fps. The recoil is just not bad at all with a 7 and it smucks elk, deer etc.

Rel 22 will also get the 3100+ velocities Jerry is getting.

Well.... I was really expecting a schelacking (sp) for over pressure loads.

All I can say is I/we shot these loads out of several 7 mm mags.
1 700 Classic 1 BBR 3 700 BDL 1 700 Synthetic 1 Savage 110 C
and at least a few more I can't recall.

Primer pockets stayed tight, no hard bolt lift, no brass extrusion nor scraping on bolt face. NOT 1 blown primer.


I ain't selling the info, I'm not recommending as a STARTING load but I've shot these enuff I'm not afraid of them in the least IN MY RIFLES.

As Always...approach w/caution, ladder test, etc.


3100 fps is doable in 7 mm RM with 160 NPs.

So the plot thickens...

My 7mm Rem Mag shoots a 160 NAB at 3000 ft/sec. My .30-06 shoots a 180 Partition at 2800 ft/sec. The NAB generates 183 more ft/lbs at 400 yards than does the Partition. At 650 yards (waaaaay farther than I will shoot) the difference is 207 ft/lbs.

The question becomes, practically speaking, is there anything a 7mm Rem Mag can do that a .30-06 can't?



P

P -

How does trajectory compare? W/O checking I think the 7 will be noticeably flatter shooting.

CDS scope, don't care about trajectory.



P

P

Don't you have to know how much to adjust ?

THNX A G W !!

AFAIK Rl 22 wasn't available in the 80s. N 205 (MRP) was so still applicable.

Jerry

Sure, but that's what a range card is for. Dialing 8 clicks or 12 clicks, no difference.



P

P,
They cover similar ground for similar purposes.
At usual hunting ranges, not a lot in it. (That is obvious)
At longer ranges, perhaps the trajectory of the 7 may be an advantage for some who know how to use it.
For over sized or potentially aggressive game, the larger heavier bullets in .30 cal may offer more "comfort".

For the rest of us, the rifle is more important because we need to like to hold it, carry it and shoot it.
John

Take a look at these 7mm RM loads. Often maximum and near maximum loads aren't the most accurate.

7mm RM 160 gr. loads

All this comparing of .270 Win, 7mm RM, .30-06,.300 Wtby, etc. seems kind of pointless. You could go around and around until you drove yourself crazy.

postoak -

Yes and we can even have accurate 'reduced loads'. Less than max loads for accuracy is not a blanket rule.

There are many here on the 'fire' that have posted many times that as you near max, the accuracy gets better.

That's not true for every powder, or bullet, or rifle but it show up frequently.

Jerry

Wind makes a difference though. 7mm wins on that one.

Never got those speeds with IMR-4831 and 160 gr NP. I used CCI-250 mag primers,but used what you used. Don't remember the powder charge for IMR-4831. Probably in the same ball park.