6mm cals vs 284's

[Rogmay]

Been reading a lot on the 600 & 1000yrd f class, looks like the general consensus is the 6br & 6 dasher seem to dominate the 600 and even the 1000 if wind isn't too bad! Question is, is it the larger recoil from the 284's or what that makes the 6's more accurate? Can you make the 284's shoot just as accurate at 600? Is it that some cartridges are just inherently more accurate! Reason being is I have a couple of 7mm huntng rifles (Cooper & Tikka) both shoot awesome, also have a Remington 6mm that my 7's out shoot. Now maybe I could do a little more work to get the 6 shooting better , so, I just thought I would ask you guys what your thoughts are! Thanks for any advice!

 

[Lapua40X]

I shoot both of 'em. IMO it's like comparing apples and oranges. The lighter, quicker 6BR that I shoot will invariably print tighter at 600 than my .284. Not by much, perhaps, but tighter none the less. As the distance increases my .284 will hold much better in any wind. There isn't much recoil in my 6BR so things like rear bag control and shoulder placement discipline aren't as critical. My .284 demands greater attention to detail when setting up a shot.
IMO if you can't drive your 6mm greater than 2850 fps (I can't get past there with mine) you shouldn't expect it to do well over 800 yards. I know there are plenty of guys who claim they can easily get 3000 fps but there is no way I can go there.

 

[Iowa Fox]

The 7mm offers the best selection of long range bullets of any caliber. On the 1000 yard line in horrible winds I watched 7s-6.5s and 6s battle it out. The 6.5s and the 6s cleaned up, I'm convinced it's the shooter more than anything. The recoil on the 7s was bumping the guys noticably more.

 

[1shot]

I shoot two cartridges at 600 & 1K. The 6 BRX is dedicated to 600 and a 284 Shehane for 1K. The Shehane holds one full scoring ring advantage to my 6.5x284 in wind. I'm a sling shooter, so that equates to two scoring rings for you
F-class shooters.
As Iowa Fox said, driving those two cartridges are as different as night and day.

Lloyd

 

[swd]

You need a 1-7"-1-8" twist to utilze the heavy 6mm bullets, then the 6's come alive.
Are you looking into F Class or just trying to maximize your hunting rifles? In F we're shooting 20 shot strings in 22 minutes so what works here isn't exacly apples to apples to a hunting rifle.

 

[Rogmay]

You need a 1-7"-1-8" twist to utilze the heavy 6mm bullets, then the 6's come alive.
Are you looking into F Class or just trying to maximize your hunting rifles? In F we're shooting 20 shot strings in 22 minutes so what works here isn't exacly apples to apples to a hunting rifle.

I'm looking at f-class guns, just got into it this year and threw a 6.5 Creedmoor shilen select prefit on a savage 12bvss, my son and I both shot it in 2 matches, a 600 & a 1000. Now building a new 284 so we each have a gun to shoot. I've always been under the impression like Iowa fox said, I believe a lot is the shooter and parts on the gun! Just wanted some input on what is making those 6's shine!

 

[swd]

F is VERY addictive! 6's are magic at 600 but do get bumped around in the wind at 1K. But if the TR guy's can do it...

 

[lbran]

Been reading a lot on the 600 & 1000yrd f class, looks like the general consensus is the 6br & 6 dasher seem to dominate the 600 and even the 1000 if wind isn't too bad! Question is, is it the larger recoil from the 284's or what that makes the 6's more accurate? Can you make the 284's shoot just as accurate at 600? Is it that some cartridges are just inherently more accurate! Reason being is I have a couple of 7mm huntng rifles (Cooper & Tikka) both shoot awesome, also have a Remington 6mm that my 7's out shoot. Now maybe I could do a little more work to get the 6 shooting better , so, I just thought I would ask you guys what your thoughts are! Thanks for any advice!

I tried them bigger calibers over and over, I learned to go with whats winning!!! 6'S, look at ibs nationals! 6's rule!!!!! save your time and money! go with 6's 600 for sure!!!! don't get me wrong, I love shooting my 7's, but over several targets agging, they've never come close to my Dashers!!!!!

 

[Rogmay]

F is VERY addictive! 6's are magic at 600 but do get bumped around in the wind at 1K. But if the TR guy's can do it...

Ya, I watched a guy at our 600 yrd shoot put up a 992 with his 223, New problem is I think my daughter might be shooting one next year, which is a good problem to have! Who doesn't like buying and building guns, just need to budget a little better.

 

[lbran]

Been reading a lot on the 600 & 1000yrd f class, looks like the general consensus is the 6br & 6 dasher seem to dominate the 600 and even the 1000 if wind isn't too bad! Question is, is it the larger recoil from the 284's or what that makes the 6's more accurate? Can you make the 284's shoot just as accurate at 600? Is it that some cartridges are just inherently more accurate! Reason being is I have a couple of 7mm huntng rifles (Cooper & Tikka) both shoot awesome, also have a Remington 6mm that my 7's out shoot. Now maybe I could do a little more work to get the 6 shooting better , so, I just thought I would ask you guys what your thoughts are! Thanks for any advice!

Rogmay, I'm shooting all out custom benchrest! hunting is a hole different animal!!! ill take my 7's for that, other then prarie dogs there 204's rule!!! lol

 

[Scott Harris]

Been reading a lot on the 600 & 1000yrd f class, looks like the general consensus is the 6br & 6 dasher seem to dominate the 600 and even the 1000 if wind isn't too bad! Question is, is it the larger recoil from the 284's or what that makes the 6's more accurate? Can you make the 284's shoot just as accurate at 600? Is it that some cartridges are just inherently more accurate! Reason being is I have a couple of 7mm huntng rifles (Cooper & Tikka) both shoot awesome, also have a Remington 6mm that my 7's out shoot. Now maybe I could do a little more work to get the 6 shooting better , so, I just thought I would ask you guys what your thoughts are! Thanks for any advice!

dasher is great for midrange. 284 is the king at 1000 yds...in the west where the winds blow. a 22lb f open rifle absorbs a lot of recoil...isnt a problem for most

 

[lbran]

dasher is great for midrange. 284 is the king at 1000 yds...in the west where the winds blow. a 22lb f open rifle absorbs a lot of recoil...isnt a problem for most

dashers have won more 1000 yrd nationals then 284's have!!!! yeah, I think 284s rule f class, your probably right on that! lot bigger 10 ring! lol

 

[Scott Harris]

dashers have won more 1000 yrd nationals then 284's have!!!!

benchrest??? that's an entirely different game than F-Open.....but you already knew that right? the OP asked about fclass

 

[Jay Christopherson]

dashers have won more 1000 yrd nationals then 284's have!!!! yeah, I think 284s rule f class, your probably right on that! lot bigger 10 ring! lol

That 10 ring looks a lot smaller when you have to make a discrete wind call for every shot.

 

[Scott Harris]

dashers have won more 1000 yrd nationals then 284's have!!!! yeah, I think 284s rule f class, your probably right on that! lot bigger 10 ring! lol

well come out and join us lowly f'ers for some f-class matches at ben avery. you can show us how you rule the roost

 

[lbran]

benchrest??? that's an entirely different game than F-Open.....but you already knew that right? the OP asked about fclass

I didn't mean to start an arqument! I was just talking about agging several targets! 6's rule!!

 

[lbran]

Ya, I watched a guy at our 600 yrd shoot put up a 992 with his 223, New problem is I think my daughter might be shooting one next year, which is a good problem to have! Who doesn't like buying and building guns, just need to budget a little better.

Rogmay, looks like I churned up an arqument with the other guys!! sorry, but if I were you, and building a gun for your daughter, I would build a 6 br, easy to load for,accurate,light recoil,ect,ect,ect just my 2 cents!! thanks!!!

 

[Rogmay]

Rogmay, looks like I churned up an arqument with the other guys!! sorry, but if I were you, and building a gun for your daughter, I would build a 6 br, easy to load for,accurate,light recoil,ect,ect,ect just my 2 cents!! thanks!!!

No biggy, pumping up the blood pressure is good for some and entertainng to all! I'm stoked about the responses and great input I've recieved from everyone! Been shooting almost 43 years and hand loading with my dad for over 40, getting bit by this long range bug is an eye opening bitter sweet feeling. I teach 40 plus kids a year to shoot with bb guns for Daisy state and national matches, just thought it was time to start squeezing the trigger myself again in competition!

 

[Jay Christopherson]

No biggy, pumping up the blood pressure is good for some and entertainng to all! I'm stoked about the responses and great input I've recieved from everyone! Been shooting almost 43 years and hand loading with my dad for over 40, getting bit by this long range bug is an eye opening bitter sweet feeling. I teach 40 plus kids a year to shoot with bb guns for Daisy state and national matches, just thought it was time to start squeezing the trigger myself again in competition!

If the game you want to play were BR, there's no question I would build a 6mm, likely a Dasher.

When I started out in F-Class, I (by coincidence) built a 6 Dasher. It's forgiving, easy to tune, and just naturally a highly precise round.

For F-Class LR though, a 7mm variant is the only way to go. But, IMO, it takes more time to master. It's not nearly as forgiving to position and setup as the Dasher (basically, you as the shooter)

If I was 100% confident in my ability to wring the most from a match rifle from the get go and wanted to get into F-Class, I'd start with a 7mm. If I wanted to dip my toe and get a feel for it before committing to the game, I'd build the Dasher.

 

[coford]

Roger,

Bring Quinn and come down to Alliance next spring. I will let you shoot both my Dasher and one of my .284's. Then you can find out for yourself before you buy. I shoot my Dasher at 600 (if the wind isn't blowing) and my .284 at 1000. If the wind is blowing the Dasher gets pushed around much, much more than the .284. If I could only have one gun for F-Class it would definitely be a .284 caliber of some variety.