Rem 7mm OR 300 Win Mag

[Thalinor]

A few days ago i picked up a Remington 700 Police in 7mm. I have not fired it yet and its still new in the box. At this point I am thinking of swapping it for a 700P in 300 win mag instead. The problem i am having is i can’t find good long range sniping reference cards that have all the fun charts like temperature, wind, rain, moving targets etc. They make great military guides for the 300 win mag, but none for the 7mm rem mag.

Reference: http://www.ustacticalsupply.com/datagear.shtml

Sniper Data Book
Already in operational use. Mil-Spec materials and construction. Printed 20 lb. bond, tactical green "Rite-in-the-Rain" paper. Cover made of polydura plastic with black plastic spiral ring. 128 leaves, 256 pages of data book. Double the size of most competitors' books. 14 pages of formulas, conversion tables, and charts on range estimation, wind, moving targets, and angle fire. Data sheets for zero summaries, cold bore shots, zeroes, bullseye, stationary, unknown distance, and moving targets. Various mission sheets and a barrel log included. For 7.62 mm NATO/.308 and .300 Win. rifles.

As you can see from the above site they make the books for .308 and 300 win mag but NOT for 7mm rem mag. I really don’t hunt and want something I can use for long range competitions.

So, anyone have any opinions? Stick with the 7mm rem mag or try and swap the rifle out for a 700p in 300 win mag? I am on a bit of a budget so I am going to stick with the 700p rifle, it’s only a matter of which cartage. I know the 300 win mag cartages are a bit more expensive but I can deal with that being its spaced out over time, unlike the rifle purchases.

 

[jem375]

go to this website and ask:
www.njhighpower.com

 

[MTMilitiaman]

As big a fan as I am of the 7mm Rem Mag, esp as a big game hunting round, I will admit there isn't a lot of match bullets and ammunition and as you have seen, there isn't a lot of information available on it as such either. Provided you can deal with the recoil, the availability of match components and information might come in handy with the .300.

 

[dakotasin]

162 a-max. 'nuff said, there.

as for the cards and such... if you are serious about long range shooting, you will quickly have your own made up.

enjoy the superior bc's of the 7mm bullets - keep the one you have.

 

[Bigfoot]

I will admit there isn't a lot of match bullets

Interesting statement, the 7mm bore has some of the highest BC match bullets out there, better than the longest 6.5mms and .308s. 3 SMKs, A-MAX, Carteruccio, JLK, how about the Bergers 168 gr with a .648 bc and the 180s .698 bc.

Before you make up your mind find out your barrels twist to see which bullets it will stabilize.

 

[MachIVshooter]

7mm RM will have roughly the same velocity with a 175 grain bullet as the 300 WM does with a 200, but the .284" 175 gr. pill has a higher BC. To get the same BC in a .308" bullet, you have to step up to 250 grains and then velocity will suffer, hence trajectory will suffer. Neither is more accurate than the other inherently, though some may argue that the standard length action the 7mm RM uses is more rigid than the magnum action required for the .300 WM.

You already have the 7mm. Makes no sense to loose your a$$ trading it in on a new rifle that has no discernable advantage and kicks harder.

 

[dakotasin]

remington houses the 7 rem mag in the same action size as the 300 win mag, 300 rum, and 30-06: long action.

 

[Rem700SD]

I'd stick with the rifle you have. There are many ballistic softwares out there at a nominal fee, or even free. Sierra's is $50 or so. I wouldn't rely on an existing table unless I was using the EXACT load that was used to make the table. Bullet makers make some very good bullets for the 7mag.

If you are serious about shooting this thing, you will wind up reloading for it anyway. Just get an accuracy load it likes, chrony it, and work out the ballistics. You'd have to do the same regardless of calibre.

 

[MTMilitiaman]

Interesting statement, the 7mm bore has some of the highest BC match bullets out there, better than the longest 6.5mms and .308s. 3 SMKs, A-MAX, Carteruccio, JLK, {snipped}

Hmm I was only aware of a MatchKing or two and the Amax, none of which are loaded in commercial ammunition that I am aware of.

Of course serious long range shooters probably handload but still...

how about the Bergers 168 gr with a .648 bc and the 180s .698 bc.

Okay I formally change my vote...

O and the info about the Secret Service using 7mms is mentioned in one of the recent edition Sierra manuals.

 

[Thalinor]

O and the info about the Secret Service using 7mms is mentioned in one of the recent edition Sierra manuals.

Really? I am getting mixed answers on this one. Some people say they are using the 300 Win Mag and others say they are suing the 7mm Rem Mag.

I will probably just end up sticking with what i have after reading several publications. One such was listed Here

Thank you everyone for the advice. If anyone has anything else to add, i welcome the comments.

 

[MTMilitiaman]

Sierra Reloading Manual, 5th Edition, pp. 468 "7mm Remington Magnum" While its primary use is in the hunting fields, the cartridge's flat trajectory and inherent accuracy has attracted the interest of competitive shooters as well. Eight years after its introduction, it was used in conjunction with Sierra's 168 gr MatchKing to win the prestigious 1000 yard Wimbledon match at Camp Perry. At this writing, the U.S Secret Service countersniper teams are armed with custom built 7mm Remington Magnums. Considering their stringent requirements for 1000 yard accuracy, this is quite a recommendation for the versitile 7mm Remington Magnum.

 

[Thalinor]

Nice find, thank you!

Its to bad they don't make the military field cards for this round.

 

[Bigfoot]

I just Googled your gun and it has a 1:9 1/6 twist so you should be able to stabilize even the longest 7mm bullets. Yeah, for a factory gun that one's going to be tough to beat.