I AM THINKING OF BUILDING A MEDIUM WEIGHT COYOTE RIFLE. I AM THINKING ON A 6MM/06 AND SHOOTING THE 105 AMAX, 107 SIERRA,107 CLINCH RIVERS. SORTA OF A SUPER TTH.[.224 75 AMAX@3500FPS]. I BELIEVE THAT I CAN EXPECT 3500-3600FPS WITH A 26INCH TUBE AND THE 105 AMAX. WHAT DO YOU GUYS THINK?

6/06 have impressive performace BUT check your reamer specs most drawing have old design ( thick neck and broad base of the miltary 06 ).

6/284 is more efficient ( short case with sharp shoulder ) and with the right chamber you can use Lapua case .

I prefer 6.5/06 you can launch the 107 gr Sierra or Lapua at highter speed and that a real lazer beam ,6.5 allow you to shoot far with 123 to 139/140 gr bullet with very hight BC and low recoil .

you need barrel with 28 inch to get to velocity

good shooting

DAN TEC

Flick, I built a similar rifle for coyotes last year. It's a Win 70 action with a Ron Smith fluted gain twist barrel, in a HS Precision stock. I chambered mine for the 240 Gibbs though. Sort of a super 6mm-06. Your expected bullet speeds are easily acheived in that cartridge, although there is fireforming to be considered. Sure works on coyotes though. I'm going to try some of the VLD bullets next at 500-700 meters to see how she does. - Dan

If you'd consider a 6.5/300 WSM...107 SMK 3500 out of a 26" tube. would also be ez to move up to 125 partition for a good long range Deer antelope load. Guessing 3250 fps for the 125

THANKS FOR THE COMMENTS,NEVER THOUGHT ABOUT THE 240 GIBBS. I WILL START TO REACH THIS CARTRIDGE.BY THE WAY THE 6.5 WSM IS ALSO UNDER CONSIDERATION.

Just want to add my two cents worth. I have owned a .240 Wby custom (98 Action) and a std 6mm Remington. I was considering a 6mm/06 at one time, too.
By using the standard 6mm Remingtion in a 26 inch barrel, one can get nearly the same ballistics as the wildcats. One would lose 100-150fps below the 6mm/06 or the 6mm/284, maybe. The barrel life is very long in the standard round. One can expect as little as 500 rounds out of the 6mm/06.
I have some very good loads for the std 6mm Rem with 70-80gr bullets that are in the 3500-3700fps range. The 70grainers will reach out to 300 yards with lots of punch and a very flat trajectory.
I currently shoot a .22/6mm Remington with a 28" Hart stainless barrel on a new Stainless M70 Short Action. With milder loads this rifle will shoot nearly 3400fps with 80gr Sierras and JLK VLDs. These bullets are real needles and like the 8" twist of my barrel. I recently shot a 2.800" group at 500 yards, before witnesses, with this rifle.
The problem with long range shooting here in Montana is not the drop, but doping for the damned wind. Small bullets at long ranges are kinda drify in the wind. Here in MT it can vary all over the place during the day with respect to direction and velocity.
Anyway, sounds like a fun project.
Great Shooting,
The Bearman out in the Big Sky Country

Bearman,

Any history to how you ended up with those caliber choices? I actually have two 22/6mm and one 6mm/06. Those were recommended by my gunsmith.

With time I think I've decided I'm not the biggest fan of .224 bullets and would prefer to have the low end start at 6mm and make that 6mm/06 into a 6.5mm/06 minimum.

Just curious.

Reed

Reed,
My fascination with a long range .22 began decades ago. I saw the old .22 Newton in Cartridges of the World and said that "I am going to have something like that some day".
At that time there were no decent heavy weight bullets to be had. I got interested in the .224 Clark for a period of time, but never had one made up as the only bullets that were available were from old Ken Clark himself, all laboriously handmade.
About 3 years ago I picked up a stainless M70 Short action featherweight new in the box for $425.00 (which was about $100.00 below dealer). I had a gunsmith friend order a Hart barrel and I ordered a .22/6mm reamer made to my specs (.468 base dia instead of the std .471), by JGS in Coose Bay, Oregon.
Anyway, after more than a year of delays I got this rifle shooting.
Unfortunately, it is way to heavy in its final form (11 lbs)AND the bullets have turned out to be too wind sensitive for me.
I tried to use the original synthetic stock but it proved to be too flexible and the gun shot 1 1/2" groups at 100 yds. So...another year wait from Winchester trying to get a Coyote stock. Stock finally arrives...I glass bed it AND the rifle FINALLY shoots like it should.
The .240 Weatherby was another experiment to build the ULTIMATE rifle...get my drift...I was on a quest .
The sad part is that I have a friend with a MK II Ruger in 6mm that shoots as good as any of my guns but is a darn sight lighter...
I know from talking with other shooters here that the 6mm/284..6mm/06 and even the 6mm Remington Improved (40degree)are all great performers....BUT not that much superior to the standard round to be worth the expense and effort.
So, I am considering getting another M70 FWT or a Ruger MK II in 6mm Remingtion. The M70 would have to be another custom barrel job as they don't offer the 6mm Rem chambering.
Or I can disassemble all of that expensive work on my .22/6mm and have it rebarreled to a std 6mm and get a nice wood FWT stock and go Coyote hunting without a 11 lb rifle.
All this shows that I am a REAL GUN NUT, like lots of other great folks visiting this site.
Hope this answered some of your questions.

The Bearman out in the Big Sky Country

A # of years ago in Precision Shooting magazine 2 guys were doing a lot of work with the 24's on rockchucks-- Boyd Mace, and Rich Kayser. a lot of their reports were with the .284 case. As I remember they were shooting the 100 gr. Speer BTSP bullet. I have been investigating this long-range coyote stuff lately and haven't gotten around to developing any loads for my new 6-284 yet. but I believe the biggest question is going to be bullet performance beyond 500 yds. on these relatively light skinned/bodied animals-- they're not as "solid" as a rockchuck or pr. dog for that matter. Last week I shot a dog at 450 yds. with an XP-100 6.5-284 pistol, using the 129 gr. Hornady SST bullet (the only one I had loaded and worked up for long-range at the time). I took him low in the chest, and he ran 50 -100 yds. before dropping. I'm questioning the match bullets ability to consistently anchor a coyote at long-range. One thing's for sure, if you pencil them, they're going to get away, which would lead me to believe that the lighter-skinned bullets are the way to go for this approach. Any experiences/comments on this??

THE SMALL DIA. MATCH BULLET MAYBE OF QUESTION. REMEMBER THE BIG CASE 22CAL. GUYS REPORT SPECTULAR KILLS WITH 75GR. AMAXS AT 500+ YARDS,THIS ON COYOTES. AGAIN BULLET CONSTRUCTION IS THE KEY TO THIS TYPE OF HUNTING.

Flick, where did you read about the 75 Amax coyote performance?? I'd like to get that info.

I would definitely have to vote for the 6/284 over the 6/06. The two are so close together in case volume as to be duplicates. A kit if people overload one or the other, and claim it to be superior, but it is physically impossible for one to be better than the other from a velocity/pressure standpoint. The old saw, started by COTW, was that the 6/06 had an advantage because there was a lot of cheap military brass around. Maybe in 1945 this was a factor, but when was the last time you saw anyone shooting an accurate rifle with converted military brass? The best reason not to is the fact that it is low on case volume. For that matter, cheap military 06 brass doesn't exist anymore. This same argument is given for using the 338/06 over the 338/284. This one I really don't get, because above 30 caliber, you are getting into a cartridge OAL problem with 06 cases in a lot of actions. The fact is that the 6/284 is a better choice, since Norma, Hornady and Lapua make benchrest quality brass in 6.5/284, which is closer to final form.

The most compelling reason is that the 284 case form is making real inroads into small bore long range benchrest, with both the 6/284 and 6.5/284 leading the pack. There is a lot of good load data available. Also, if you check the specs, the 284 is like a 6 ppc on steroids. Its case diminsions (on ratio) are very close. Winchester invented the new short "effecient" case form in the 1950's. Nobody realized it at the time.

If you are interested in true long range varminting and this will be a reasonably heavy rifle, give a long look at the 6.5/284. It is now a factory round, and with varmint bullets will buck the wind much better. You can use a rangefinder and know exactly how much to hold over. No one has wind readings all the way to the target. This is the crux of the long range game shooting problem. A lot of people buy a "500 yd" big game rifle, get beat to death, and then miss anyway because of 24" of wind drift.

6mm Ackley would be the easy answer.

I've been using the 6/06 for about several years now. I set it up to shoot chucks and yotes at long range.

25" 4 weight Scheider with a 10 twist
6-20 Leo with Premeier dotz to 700

At any rate I have been around it a fair bit, been thru two tubes and have several friends that built em after me.

Here is the speeds that you can expect with the 6/06. With 25" tubes.
All Nozler BT's
55 and IMR 4350=4400
70 and IMR 4350=4000
95 and R22 or R25=3500-3600

Now I have worked with a few 6 Rems and none to date have run with the 6/06. Although I do believe it and the 243 are wonderful rounds.

As for the 6/284, I've yet to of run into someone I know that can get them to run the speeds the 6/06 will. Also I've yet to of found one that would feed really well in a repeater. So for me if I was doing a single shooter it might be a thought but not for a repeater.

Same thoughts go for the 6.5/284 wonderful round the 1000 yard guru's are really making it work. I'd also be willing to bet they are using single shot rifles.

For me the 6/06 is the go to round for most of my long range shooting. For me it works great and is my answer.

"GET TO THE HILL"

Dog

SSCOYOTE- I HAVE A ARTICLE ON THTE TEXAS TROPHY HUNTER[ie. .224tth.],22/6mm. i will post the web address as soon as i can locate it.MARK THANK YOU FOR YOUR EXPERIENCED COMMENTS.THE OTHER DAY I RAN INTO A SITE CALLED Z-HAT.COM, THEY MAKE A CHAMBERING CALLED THE 240 HAWK[ie 6MM/270WIN].A CUSTOM ROUND FOR THEM ON CUSTOM GUN. THEY CLAIM ROUTINE BALLASTICS OF 100GR.@3800+.EVEN GIVE INSTRUCTIONS ON FORMING BRASS FROM .270WIN. OR YOU CAN BUY BRASS FROM THEM.HMMM.

Hi Mark, long time no talk.
I have right now a Shilen SS 6mm tube and a nice clean 1938 M98 mauser and can't make up my mind between A 6mm06 and a 6mmAI. Life is rough isn't it. Call em in close____Pete

I would recommend the 6mm/.284 over the 6mm/'06!!