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Location: Plano, TX
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7mm/08

I don't know anything about the Steyr rifle, but I love the 7mm/08 cartridge. The 7mm bullet has one of the, if not the highest ballistic coefficient of any bullet, which means that it kills well, competing with larger bullet calibers and weights. This cartridge doesn't kick much and takes medium game cleanly out as is practically far as pretty much anything else. If you get one, I bet you will love it!

Mickey Nierdieck
Outdoor Connection
http://www.oc-adventures.com

WesternHunter's picture
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Joined: 05/05/2006
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7mm/08

7mm bullets thown at high velocities do kill well, but not because of their BC, it's because of the sectional density being better than larger caliber of the same bullet weight, therefore they penetrate better than a larger caliber of the same bullet weight. BC has more to do with trajectory and aerodynamics than killing ability,though it does contribute some to it's killing ability.

I do like 7mm Rem Mag and 7X57 mauser cartridges, though I use the .270 Winchester for all my big game hunting needs.

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Location: texas
Joined: 04/23/2006
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7mm-08

I really like my Tikka 7mm-08. It is fun to shoot, has litlle recoil, compared to the big magnums, has given me nothing but 1 shot kills from sheep to large deer and has excellent penetration. I still have yet to figure out why the ammo is more expensive than a .30-06 but it works well regardless. I have more animals with this gun than anything but the .300 magnum, and that one goes to Africa with me.

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Location: Illinois
Joined: 07/20/2006
Posts: 13
7mm-08

My Rem 700 Mountain Rifle in 7mm-08 will consistently put three shots from a bench into about .75 to .8 of an inch at 100 yards. That's with Federal Premium ammo with 140 grain Nosler Ballistic Tip. It's packed in the back of the truck right now. Leaving for wyo. in the morning.

bitmasher's picture
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7mm/08
Quote:
if not the highest ballistic coefficient of any bullet

Checkout bullets 338 caliber and above to get into some big time BC's. Although 175 grain .284 sierra hpbt are pretty darn good.

Quote:
which means that it kills well

No it means its energy loss due to friction is reduced compared to a lower BC bullet. This translate into less bullet drop per distance traveled relative to a lower BC bullet.

I agree, 7mm-08 is a great cartridge!

Don Fischer's picture
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Location: Antelope, Ore
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7mm/08
bitmasher wrote:
Quote:
if not the highest ballistic coefficient of any bullet

Checkout bullets 338 caliber and above to get into some big time BC's. Although 175 grain .284 sierra hpbt are pretty darn good.

Quote:
which means that it kills well

I think your refering to sectional density. Nothing up to 190gr in 30 cal and no cal above 30 that I have data for can touch the 26, 27 and 28 cal heavyweight bullets for ballistic coefficent. The B.C. is a relative figure that gives an indication of a bullets ability to overcome gravity due to its shape and thus ability to cut thru the air better. The draw back to it is that it's value is a mute point until your way beyond where the vast majority of us can shoot well. B.C. increases with shape, RN vrs sptz noses, and with length. When adding length, you of necessity add weight and it takes more powder to create velocity. Example is the 7-08 cannot drive a 175gr bullet as fast as a 7mm magnum. But at reasonable hunting ranges and even well beyond, the bullet is still deadly and penetrates well. In fact several articles have noted that velocity sometimes hampers penetration. The ideal velocity appears to be between around 2000fps and 2600fps at impact.

Sectional Density is a numerical value to indicate a bullets ability to penetrate. that 175gr bullet would penetrate better from the 7-08 out to some point than the same bullet from the 7mm mag. Then as the 7mm mag loses some velocity, it should start penetrating better. Two things are important for penetration; weight and velocity (but not to much velocity). I believe thats why we see many cartridges killing out of proportion to their size at normal ranges, say 250 to 300 yds. Somewhere well beyond there, the larger cases start to play catch-up. Cartridges killing out of proportion to their size would include the eourpean 6.5's especially the 6.5x55 and 6.5x57, the 7-08, 7x57, the 300Sav and the 308 win would also be on the list. The 30-06 and cartridges based on that case do very well but are drawing close to to much velocity. The 180gr bullet in the 30-06 is a great bullet, but I would wonder how much of that can be credited to the 30-06 not reaching magnum speeds? In the 270, the favorite bullet for elk size game seems to be the 150, not the famious 130 or even the 140. I know of no one I'd believe that would claim that a 150 gr bullet in a 30 cal is an elk bullet, Barnes TSX's may be an exception.

In the end, sectional density is what hunters need concern themselves with most. B.C. is a number much more relavent to long range shooting. It allows the bullet to maintain velocity better, indeed, catch up with lesser bullets at some point waaaay down range. It is the same with boattail bullets, their advantage kicks in well past reasonable ranges.

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7mm/08

Well said Don!
read your post twice, trying to get an arguement going but you're right again Thumbs up Thumbs up Thumbs up

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7mm/08

I believe Noslers 200gr Accubond has the 25's, 26's, 27's, 28's and 33's beat in BC and SD and is the best of the 30's in hunting bullets. I don't have the figures handy but I recall my amazement when I saw them. neener!

Gotta love those 30 cals.

When I was looking for a good carry around mountain rifle. I was considering the 7-08. It has some very impressive stats and the inherently accurate short case of the 308. The 175gr were to long for performance. The 160gr bullets are pretty much max. The best performer, as I recall, is the 150gr.
I opted for an easy carrier in 300wsm with 180's