7mm Accuracy?

[Terry]

Is there a 7mm cartridge that is more accurate than the others? Looking only at accuracy? 600-1,000 yards.
Highest BC, smallest wind drift excluded. Simply does one specific 7mm cartridge group better that the rest?

If you conclude that one is better, your thoughts on why.

Looking to learn.

Terry

 

[ShootDots]

I think that if you had equal rifles, meaning, the same quality action(s), stocks, triggers and most of all, barrels, you would then be relegated to loading techniques and the skill of the shooter, to determine the level of accuracy in a given cartridge. That is a L-O-N-G winded sentence to say that: A 284Win and it's "improved derivatives", a .280A.I. and a 7MM SAUM or Short-Mag, will, with all things being equal, deliver ALL the accuracy the shooter can handle. Then it comes down to the level of skill of the shooter.

I am quite sure that there are other cartridges equally as accurate, however, you mentioned 600-1000 yard competition in some form. I believe the aforementioned ones in the above paragraph, sit at the pinnacle of what you are looking for. Stay with those, load with precision and learn to shoot to the cartridges potential and you will have fulfilled your quest..

 

[snowpro440]

I would look at the results of the matches as that should clear up your questions as in what direction to proceed.

 

[Sniper338]

to say that: A 284Win and it's "improved derivatives" (.284 Shehane), a .280A.I. and a 7MM SAUM or Short-Mag (7WSM), will, with all things being equal, deliver ALL the accuracy the shooter can handle. Then it comes down to the level of skill of the shooter.

I added some notes in ( ) there.. but those were the first to come to my mind too... 180 gr berger bullets... I have no experiance in competition, but just long range shooting. After that reloading skills, and shooting skills.. but to put skills aside and just name calibers those are at the top of the list I think.

 

[ShootDots]

Bob, I find the 6.5's to be a bit more accurate than the 7mm's too. However, in my "game" which is F-Open, it is nigh on to impossible to beat the 7mm's when the wind is switching and howling. But "straight up and down" accuracy, I agree, the 6.5's seem to be a bit more accurate.

 

[6mmcldasher]

all of the 7's are accurate BUT some can be tuned better/ easer than others.

 

[dkhunt14]

In 1000 yard benchrest the 7 WSM failed. They just weren't accurate enough. The 7 SAUM was a lot more accurate. I new a bunch of guys that tried a 7WSM and they just wouldn't shoot small enough to win. It was the same way for the 6.5 WSM. Now for hunting or longrange hunting they are ok because they get a little more velocity. Matt

 

[6mmcldasher]

They also failed because of short barrel life.

 

[ShootDots]

I agree with you. But I think my unpublicized 6.5 - 155 gr. VLD could stay with the 7's in the wind pick ups and let offs. And give you a little less recoil to boot. The bullet has a 17cal point with a 9 degree BT and the jacket length used for it is only.005" shorter than the jacket used for the 180 gr 7mm VLD. And it stabilizes in an 8 twist at 2650 fps MV.
Its awesome when you stand it along side of the 180 7mm. The two bullets are almost the same length.

When you see the old 6.5 - 155 Sierra along side of this bullet, its like comparing a hot air balloon with a sleek jet fighter plane.

Bob, I have several hundred of my Bergers... However, I would like to try that 155 in my .260A.I. I bet with H4831SC or even possibly (won't know until I try) H1000.. I will P.M. you with my personal info and a bit later this year, I would like to buy a few hundred and give'em a run.. Thanks..

 

[Quinc]

I've had 2 - 7mm's and 2 - 6.5 mm's and found the 7's were the toughest to get to shoot. With the 6.5's they both shot real good from the "get go" and I had no problems with consistent accuracy. Both were based on necked down 308 and 30-06 cases. The 6.5's were real tack drivers. Both the 6.5 & 7's were fed a diet of hand made match bullets.

Where can we buy these magical 6.5 bullets?! =)

 

[Elwood]

I agree with you. But I think my unpublicized 6.5 - 155 gr. VLD could stay with the 7's in the wind pick ups and let offs. And give you a little less recoil to boot. The bullet has a 17cal point with a 9 degree BT and the jacket length used for it is only.005" shorter than the jacket used for the 180 gr 7mm VLD. And it stabilizes in an 8 twist at 2650 fps MV.
Its awesome when you stand it along side of the 180 7mm. The two bullets are almost the same length.

When you see the old 6.5 - 155 Sierra along side of this bullet, its like comparing a hot air balloon with a sleek jet fighter plane.

Sounds like the perfect bullet for my 6.5 Saum.

Now I'm finding the opposite in that the 7mm's have been very easy to get to shoot. I have no experience of the 7mm Saum (yet) but both the 284 and 284 Shehane have been really easy to get to shoot to a very competitive level.
The 7WSM was a different story all together but once you have cracked or indeed if you crack it there's no looking back. I wish I could say the same for 6.5 Saum!

 

[Sniper338]

I agree with you. But I think my unpublicized 6.5 - 155 gr. VLD could stay with the 7's in the wind pick ups and let offs. And give you a little less recoil to boot. The bullet has a 17cal point with a 9 degree BT and the jacket length used for it is only.005" shorter than the jacket used for the 180 gr 7mm VLD. And it stabilizes in an 8 twist at 2650 fps MV.
Its awesome when you stand it along side of the 180 7mm. The two bullets are almost the same length.

When you see the old 6.5 - 155 Sierra along side of this bullet, its like comparing a hot air balloon with a sleek jet fighter plane.

i bet those do shoot. I wiah berger would make some 155 to 160 gr for the 6.5 cal just to have them available easier... itd be interesting in the 260

 

[Erik Cortina]

.284 Winchester or .284 Shehane.

 

[Erik Cortina]

BCB, what is the twist required for your 155's?

 

[Mark Walker in TX]

From about 5 posts back:

The bullet has a 17cal point with a 9 degree BT and the jacket length used for it is only.005" shorter than the jacket used for the 180 gr 7mm VLD. And it stabilizes in an 8 twist at 2650 fps MV.

And for those that have never shot a Cauterucio bullet, well, that's a shame. They are some of the very best bullets made.

As far as cases, I found the 7 SAUM to be very accurate, I just didn't care for the recoil or barrel life. I continue to be very happy with both a 7 Walker, and a .284 Win.

 

[Erik Cortina]

From about 5 posts back:

The bullet has a 17cal point with a 9 degree BT and the jacket length used for it is only.005" shorter than the jacket used for the 180 gr 7mm VLD. And it stabilizes in an 8 twist at 2650 fps MV.

And for those that have never shot a Cauterucio bullet, well, that's a shame. They are some of the very best bullets made.

As far as cases, I found the 7 SAUM to be very accurate, I just didn't care for the recoil or barrel life. I continue to be very happy with both a 7 Walker, and a .284 Win.

Thanks Mark, I missed that.

 

[ShootDots]

Later this year (Springtime) I am going to order a few hundred and see if I can get them to do what I want. If I can, these bullets should be "Thee Ticket" in the 6.5 for both 600 and 1000 yards! I am excited about the prospects of what their capabilities might just be!

 

[Dale700]

First , I am new to this site and do not shoot long range compition . It is an honor to read the test results of men who do .
My humble .02 worth has come from shooting long ranges for fun and other reasons for the last 30 years , IMO the 7mm Remington mag does a fine job to about 1200 then the 300 kicks in . I for one have been a 7mm fan the whole time . There are a few things that the rifles I have danced with had in common , one , polish the chamber don't know why for sure but it works , next powder , H4831sc and H1000 , then bullets , Bergers shoot best but are fickle , noslers second then serrias .
The fathoms of volumes of information out there on the grimlins that live out past 500 is testimony to how many ways one can start the process of your own rhythm . In short . I love the plain old 7mm rem mag .

 

[Terry]

This is so cool. Different things work for many of us gun to gun, barrel to barrel. With two years trying to get my .284 Shehane to shoot, my best was 2.5" groups at 600 yards. These were shot with 180 Sierras.

Many have said this is not to bad.

 

[ShootDots]

This is so cool. Different things work for many of us gun to gun, barrel to barrel. With two years trying to get my .284 Shehane to shoot, my best was 2.5" groups at 600 yards. These were shot with 180 Sierras.

Many have said this is not to bad.

Terry, if you can get your Shehane to average 2.5" @ 600 yards, that is MORE than good, that is excellent! It is NOT Benchrest accuracy to WIN, however, you would do GREAT in F-Open! You probably would not go home last in Benchrest either!