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Skeeter60
21-10-2010, 02:53 PM
The 7mm Remington Magnum is the most popular and successful belted magnum cartridge in the world.
In Africa of course the grand father of all belted magnums the .375 H&H magnum is the most successful and popular.
The 7mm magnum is the best compromise cartridge for Long Range Big Game hunting.
Bullets of larger diameter have to be much heavier to give good Sectional Density for penetration and higher Ballistic Co- efficient to retain high velocity at longer ranges
Its felt recoil is not very different from a 270 Win ,a 30-06 or even a 308 Win. It fires from 110,115,120 130 140,145, 150,160,170,175 and also 190 grain bullet.
The lighter than 120 grain bullets are not good as these have a propensity for self destruction after going a 100 yds or so , I have personally experienced this with the 120 Nosler varmint bullets designed for 7mm handgun use at 2000 FPS or so. ( Contender Pistols and XP 100 types)
I unknowingly hand loaded and fired these in my magnum and although these would make 3/4 inch 5 shot groups at 100 yds I could not find a single bullet hole on a 4x4 feet target at 200 yds, comming back to 100 yds I shot again and again a 3/4 inch group and only then I noticed the bullet holes had Comet Tails these were already coming apart and some observers told me that there is a puff of smoke just beyond the 100 yd line each time I fired. I later had this phenomenon confirmed. Very light Varmint bullets should not be fired at the Very high magnum velocities.
The best long range bullets for the 7mm magnum are between the 150 and 175 grains.
I am giving the trajectory of the 160 Grain Spitzer Boat Tail Bullet with a BC of .560 fired at a MV of 2975 FPS

Range. 100yds 200yds 300yds 400yds 500yds
300 yd zero
Trajectory. +3.5 inches +4.2 ins 00 (-) 9.8 ins (-)25.9 (-)
200yd zero. +1.4 00 (-)6.3 ins (-)18.3 ins (-)36.5 in
Muzzle
Energy. 3197 Ft Lbs. 2838 Ft Lbs 2515 Ft Lbs 222.8 Ft Lbs 1953.6Ft Lbs 1713.6 Ftlbs

Data From Speer Reloading Manual Number 12.

The 7mm rem mag is a very versatile long range cartridge and from Urial to Himalayan Ibex to Marco Polo sheep , to Brown bear, and Neel gai one is never under gunned and never woried about the trajectory. How ever longer than 300 yds shots should only be taken with range confirmation through a Laser Range Finder and when the wind is not too strong.
I print and tape the trajectory on the stock and cover it with transparent tape.It comes handy.
Please Zero your Rifle at a 100 yds from a sitting position with the rifle firmly rested on a sand bag or some thing, make sure the barrel is not touching any thing and squeeze off at least two five shot groups. Bullets are never wasted on paper, you will end up firing only one good shot on game and be pleased with the out come . Happy hunting.

JU

Syed Adeel
21-10-2010, 04:07 PM
Indeed an informative share like always sir. It is a pleasure to read your posts sir!

Avais
21-10-2010, 10:04 PM
Thanks you verymuch Sir for the detail info. Do you have any review of .270, please share. thanks

Aquarius
21-10-2010, 11:39 PM
Great information as usual Sir.. thanks for sharing... :)

Dr Zakir
22-10-2010, 12:12 AM
great tips sir and zabardast review .

Skeeter60
22-10-2010, 02:03 AM
Thanks you verymuch Sir for the detail info. Do you have any review of .270, please share. thanks
In a day or so

Daudpota
22-10-2010, 11:04 AM
Great. This is really informative. I am waiting for more such informative posts.

Regards.

Avais
22-10-2010, 01:24 PM
In a day or so

Thank you very much and waiting desperately.

actionhero
22-10-2010, 02:56 PM
Skeeter60 sir ur living encicolpedia of guns our prey with u sir review of .270 and .243 if u have some spare time

SHOTGUNNER
25-10-2010, 03:50 PM
skeeter60
sir vary good review and its really informative.i always love to have 7mm rem mag and 30-06. top guns for long rang hunting and target shooting.

virgo85
26-10-2010, 02:12 PM
thx dear, do u plz rpovide me some information abt pakistani made 7mm rifle. wat is its price right now in market. etc

ACHILLES
26-10-2010, 07:00 PM
I use only 150 & 175 grain bullets. Using 150 grains bullet I consider 6" inches dia vital hit zone for my zeroing. Keeping height of scope about 2.5" inches high from centre of Bore, I like to be 3" inches high at 100 yards from 24" inches barrel length (published velocities for COMMERCIAL magnum ammo other than short magnums are taken with 26" inches test barrel lengths). With this zero settings for 6" inches vital hit zone maximuim point blank range is 350 yards or in other words, do not have to worry for hold over and hold under from 0 to 350 yards.
As i call it RULE OF 3.

Ilyas
26-10-2010, 10:43 PM
Now this is some serious science... unfortunately just flying by my ears : (
@Achilles... Bro you'll have to explain it to me in person, in more easily understandable language off course :)
You know I'm not a very good student and need extra attention :D

HammadArshad
27-10-2010, 11:52 AM
Thank you very much @Skeeter60 Sir for sharing such a knowledge with us.

@ACHILLES bro, Please try to re-phrase your Rule of 3 :) actually when you said "Keeping Line of Sight of scope about 2.5" inches high from Line of Bore, I like to be 3" inches high at 100 yards from 24" inches barrel length"

I could not understand what does 2.5" and 3" mean in a single line :/

Regards,

ACHILLES
27-10-2010, 06:22 PM
Thank you very much @Skeeter60 Sir for sharing such a knowledge with us.

@ACHILLES bro, Please try to re-phrase your Rule of 3 :) actually when you said "Keeping Line of Sight of scope about 2.5" inches high from Line of Bore, I like to be 3" inches high at 100 yards from 24" inches barrel length"

I could not understand what does 2.5" and 3" mean in a single line :/

Regards,

* corrected the clerical mistake and replaced the word LINE OF SIGHT with HEIGHT.

APPRECIATING FOR POINTING OUT THE CLERICAL MISTAKE. :)

coolbox18
28-10-2010, 05:33 PM
Now this is some serious science... unfortunately just flying by my ears : (
I cannot disagree, I am in a similar state!

Skeeter60
29-10-2010, 01:18 AM
thx dear, do u plz rpovide me some information abt pakistani made 7mm rifle. wat is its price right now in market. etc

I am sorry I have no idea but I can find out in a day or so for you. I recommend you save for a pre owned imported CZ Brno it will be cheap and still one of the best.

Skeeter60
29-10-2010, 01:19 AM
Achlilese

Keep up your good posts.

Turumti
29-10-2010, 01:26 AM
Bullets are never wasted on paper, you will end up firing only one good shot on game and be pleased with the out come . Happy hunting.

JU

Excellent point! I could not agree with you more.

wasi
26-02-2011, 05:46 PM
what is the price of used 7mm remington magnum rifle.

ACHILLES
26-02-2011, 06:03 PM
xpensive idea i think.

haseebwarraich
08-02-2013, 08:10 PM
Dear friend

where can buy cartridge for my 7mm.it has written on it 7x57mm.

masood357
08-02-2013, 08:16 PM
Dear friend

where can buy cartridge for my 7mm.it has written on it 7x57mm.

Plz update your location so the members from your city or nearest to may help you out.
Regards

shadow warrior
04-05-2014, 10:20 PM
Hello fellaz....... Just got hold of a NIB 7mm rem mag...offcorz CZ ..... Just need or expert opinion for its accuracy.precision.consistency n most suitable bullet weight for medium range shooting 300-400...plz advice sm scope also....wud really any1 using this gun persoly....I have got internet n I'm liteenough educated to read reviews n crash on Chuck Hawks ... ;) ..if sm1 have a range report with pix....wud to the magic....regards....

Hungry Lion
04-05-2014, 10:35 PM
Nice review

Dr_Gilani
04-05-2014, 11:11 PM
wonderful - to the point; highly technical information in very simple way; a beauty :)

Regards

ajmal virk
06-05-2014, 09:21 AM
Really informative review sir thanks for sharing.

fezan
07-05-2014, 06:28 PM
Dr. Homayoun, with due respect, you can make a separate thread for showing 'your desires'. I am saying this because I found your showoff distracting while reading this thread. Our highly respectable and experienced member Skeet60 sb started this thread to share some knowledge with newbies like us. and you drifted this thread to completely another side, i.e. random pics from net. I don't understand point for doing so..

Hungry Lion
07-05-2014, 06:44 PM
Nice post keep up