7mm for 1K?
- Thread starter pilot_dc
- Start date
Absolutely. It is an excellent 1K round and getting more popular all the time. Of course, you'll need good equipment in that calibre for 1k shooting. Not many factory barrels are exceptional out to 1K.
http://www.6mmbr.com/gunweek064.html
http://www.6mmbr.com/gunweek064.html
Long Range Canuck
CGN frequent flyer
- Location
- Athabasca Alberta aka God's Country
PM Mystic if you want to hear the attributes of the 7mm. He has it down to a fine art and can definatly point you in the right direction of the how to with a 7mm and many other cartridges.
- Location
- Whitehorse, Yukon
I'm doing the load development at this point. Looks like 162gr Hornady Amax @ 2900fps is going to be the ticket for me shot out of a custom barreled 280 Rem. Weighs in just over 10 #'s and yes is does kick some. Not as bad as my 300win.!
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
Yep, own several and built my own wildcat to exploit this cal. What do you want to know?
Jerry
Jerry
With all the long range match cartridges it comes down to two things:
1. Is the accuracy potential there?
2. Is it ballistically capable?
In the case of the 7mm (regardless of the cartridge used to hold the powder charge) the answers are:
1. Maybe.
2. You bet.
Even the 7mm08 will drive 162 grain bullets plenty fast enough to remain supersonic well beyond 1000 yards. So will the 7x57.
As far as accuracy capability is concerned, sub-moa is easy, sub-3/4 achievable, sub -1/2 possible if things work out well. This is also true of most cartridges usable for 1000 yd competition.
So, will the 7mm give you any kind of an edge? No. The only reason to shoot a 7mm is because you want to!
Years ago, the 7 was more highly regarded because people had barrel fouling problems with the 6.5's. These problems are less evident today for a couple of reasons. First, people are no longer trying to drive the bullets at 3200 fps for competition. Second, improved cleaning procedures and, perhaps, the use of moly-coated bullets.
Anyway, I've seen some good shooting 7mm's but don't see any advantage to them. They don't shoot any better than the lighter recoiling 6.5 and certainly not as well as the user friendly 6mm's. Regards, Bill.
1. Is the accuracy potential there?
2. Is it ballistically capable?
In the case of the 7mm (regardless of the cartridge used to hold the powder charge) the answers are:
1. Maybe.
2. You bet.
Even the 7mm08 will drive 162 grain bullets plenty fast enough to remain supersonic well beyond 1000 yards. So will the 7x57.
As far as accuracy capability is concerned, sub-moa is easy, sub-3/4 achievable, sub -1/2 possible if things work out well. This is also true of most cartridges usable for 1000 yd competition.
So, will the 7mm give you any kind of an edge? No. The only reason to shoot a 7mm is because you want to!
Years ago, the 7 was more highly regarded because people had barrel fouling problems with the 6.5's. These problems are less evident today for a couple of reasons. First, people are no longer trying to drive the bullets at 3200 fps for competition. Second, improved cleaning procedures and, perhaps, the use of moly-coated bullets.
Anyway, I've seen some good shooting 7mm's but don't see any advantage to them. They don't shoot any better than the lighter recoiling 6.5 and certainly not as well as the user friendly 6mm's. Regards, Bill.
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
With new very high BC bullets coming out in 7mm, the landscape is changing.
Rifle weight class really defines what 'works'. The heavier the class, the heavier the bullet and larger the powder capacity of the case used to make it all work. Whether brakes are allowed or not also affect the choices.
There are most certainly unlimited 1000yd BR shooters driving 7mm bullets to 3200fps. They feel that is the better route to go then a 338 going 2800fps.
Then there are some hernia/crane assist rifles that can push these heavies over 3000fps. KABOOM>>>
Try one of these in a 10lbs class and you will get at least one shot away before heading to the chiropractor. 6mm's rule here.
Ultimately, it all works, at least based on the class rules and how/what rifle is shot. At long range, you will have to dope conditions no matter what rig you decide is the best mousetrap.
The newest whiz bang super zapper can offer some SLIGHT advantage over the last hot ticket but if you can't dope, you loose. However, if your shooting is up to the comp, having a more forgiving set up will keep you from dropping that all important point or two.
And that brings home the trophies....
Jerry
With the excellent barrels, bullets and loading done, ALL popular match calibres have the same accuracy potential at distance.
Rifle weight class really defines what 'works'. The heavier the class, the heavier the bullet and larger the powder capacity of the case used to make it all work. Whether brakes are allowed or not also affect the choices.
There are most certainly unlimited 1000yd BR shooters driving 7mm bullets to 3200fps. They feel that is the better route to go then a 338 going 2800fps.
Then there are some hernia/crane assist rifles that can push these heavies over 3000fps. KABOOM>>>
Try one of these in a 10lbs class and you will get at least one shot away before heading to the chiropractor. 6mm's rule here.
Ultimately, it all works, at least based on the class rules and how/what rifle is shot. At long range, you will have to dope conditions no matter what rig you decide is the best mousetrap.
The newest whiz bang super zapper can offer some SLIGHT advantage over the last hot ticket but if you can't dope, you loose. However, if your shooting is up to the comp, having a more forgiving set up will keep you from dropping that all important point or two.
And that brings home the trophies....
Jerry
With the excellent barrels, bullets and loading done, ALL popular match calibres have the same accuracy potential at distance.
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Ardent
CGN Ultra frequent flyer
I'm just starting to load 180gr Bergers, with the insanely high BC of .684, for my 7mm WSSM based wildcat. These Bergers are true needles, and don't slow down very quickly. In fact, they are the single best sub .338 LR bullet I've shot, and I prefer shooting the 180gr 7mm's to the 300gr .338's anyday, and can shoot smaller groups with 7mm's. I'll post my results in a new thread for the 7mm wildcat once I shoot it, I'm running a lot of 'new tech' this time, from the custom cal with the reamer made to my specs to what is to me the most interesting feature, the polygonally rifled stainless 27 1/4" #8 contour barrel it's running. Exciting times. 
- Location
- Hillbilly shack in the boonies
Yes , and No
