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6-284 long range antelope load

 
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  #15  
Old 08-04-2004, 02:03 PM
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Re: 6-284 long range antelope load

I shoot between 20 to 25 rounds then I clean with Butches Bore shine or Hoppe's #9. I have a really smooth bore so it does not really copper foul until you hit the 30 round mark or more. Varget is not temp sensitive that is why they made it I have used it on a 40 degree day and a 85 degree day shot the same. As for load density never figured it out but in my rifle I shoot 47 grains of it and it shoots 3 shots at 100 yards in the .2's with a MV of 3487fps. I just tried it because I was bored and had a can sitting there but it did work well in my rifle. For someone just starting out I would try R-22, IMR-4831, IMR-7828, or H-4831. One of those should fit the bill for bullets 85 grains or more. Iron Worker I also use the Fed 215 Primer in my 6-284 it seems to like it better then a standard primer.
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  #16  
Old 08-04-2004, 09:15 PM
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Re: 6-284 long range antelope load

Dakor This is great.Now my self I've had good results with H1000.57,2 with Hornady 87 V-Max.Just under 1/2" Thats touching the lands.If I back the bullet off,would'nt I loose velocity?I guess I'll half to try it and find out.I've been useing Winchesters WXR but one over cast day and velocity was 200FPS down.Dang can't have that! So far the slower the powder the less flyers I get.When you say your getting groups in the .2s do you mean 1/4" MOA My best so far measureing center to center is about 3/8"If I can't hunt varmints with that kinda accuracy then its time to take up knitting& pingpong. [img]images/icons/confused.gif[/img] [img]images/icons/rolleyes.gif[/img]
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  #17  
Old 08-04-2004, 09:31 PM
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Re: 6-284 long range antelope load

Dakor,

Just wondering what kind of extreme spread are you getting over 10 shots using 47 gr of VarGet? How are these loads grouping at 1/4 mile?

This is the problem I have encountered with fast powders in large cases, to much velocity variation.

If your shooting at 100 yards for groups, extreme spread means nothing in a varmint hunting application.

I have a Ruger M77VT that was a 22-250 that shot groups into the 3's using the 50 gr Ballsitic Tip at 3875 fps. The funny thing is this load produces an extreme spread on average of 120 fps for ten shot strings. Still it groups very tight.

In hopes of cutting this number I printed the action, cut 1/2" off the breech and squared and trued the barrel shank and rechambered to the hot 22-250 AI.

Now I get the same 50 gr Ballistic Tip going 4090 fps and it groups in the 2 range but extreme spreads are still +100 fps.

In comparison, My 6mm-284 with the 107 gr Mk at just shy of 3600 fps only gets groups in the 1/2 moa range at 100 yards but with extreme spreads in the single digits to low teens.

At 500 yards, I have shot several sub 1" three shot groups which equates to less then 1/5 moa at that range. I have also made multipule one shot kills on chucks from 600 yards to my personal best one shot kill of 1055 yards with this rifle.

The test of any good load is at extended ranges this will tell all weaknesses of any load.


Good Shooting!!!

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  #18  
Old 08-05-2004, 07:28 AM
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Re: 6-284 long range antelope load

Fifty Like I said I tried it because I was bored and had a can there. [img]images/icons/smile.gif[/img] But to answer your question with speed varation the 3487fps is the average of 5 shots three of those were the same at 3499fps and the other two shots one was off around 25fps and the other I dont exactly remember. I shoot R-22 or IMR-4831 and I have shot 5 shot groups out to 500 yards with those two powders with groups measuring 1 1/4 to 1 1/2. I have never tried Varget at that distance but next time I shoot I will take that load and see how it does. I mean every gun is different I have seen a 30/06 shoot better at 600 yards with IMR-4064 then with H-4831?
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  #19  
Old 08-05-2004, 10:31 AM
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Re: 6-284 long range antelope load

Dakor

Please do not feel like I am questioning your comments, its more like I am curious how the faster powder is performing in the large case.

I have just never experienced fine match quality results with such a fast powder in a large cased/small bored rifle.

I am not saying you are wrong, just curious since you have tested this powder.

I agree, every rifle and handgun perform a bit different, when all is going to hell in accuracy and consistancy, its often time to try something a little out of the norm and often it works well.

Just picking your brain on your testing. I will admit that when I develope loads for this type of round, I often do not even look to powders such as VarGet.

Since I am paid hourly for load developement and I charge my customers for componants, I select the best two or three loads that have worked in the past and start there.

In one of my rifles that I build, I generally get at least one of those that is a stellar load but in a full custom rifle, most loads shoot pretty well if its built correctly.

Please do not take offense if I came off as questioning you, just asking questions to learn from your testing.

Good Shooting!!!

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  #20  
Old 08-05-2004, 12:39 PM
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Re: 6-284 long range antelope load

Fifty I thought the same thing you did that fast powder would not work worth the crap [img]images/icons/grin.gif[/img] but it did. I will try it next time I shoot at 500 yards. I have a question for you how far do you shoot your 6-284 and what do you shoot with it? Is it mostly paper or Varmits? I want to try shoot some coyotes at 800 yards + this winter but for deer I want to stay at 600 yards and under because the Bullet Energy is low beyond that. I wish Sierra would just get it over with and make a 100gr MatchKing.

[ 08-05-2004: Message edited by: dakor ]

[ 08-05-2004: Message edited by: dakor ]
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  #21  
Old 08-05-2004, 04:58 PM
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Re: 6-284 long range antelope load

Dakor,

I made my 6mm-284 for the purpose on hunting rock chucks at ranges from 800 to 1200 yards.

I originally intended to use the 105 gr Hornady A-Max as it would perform much better at longer ranges as far as expansion and energy transfer.

Problem is that they let loose as far as accuracy at 3250 fps almost to the fps. At 3240 fps I was getting 1/2 moa groups at 400 yards and at the next test load up, 3265 fps, they grouped 1.5 moa. They just got worse from there.

I feel this is because I actually have more twist then needed for the 105 A-Max, a 1-9 would have been much better.

I just built a 6mm-06 for a customer using a 1-9 barrel and he is getting near 3600 fps with the 105 gr A-Max out fo a 28" barrel with groups in the 3's and 4's at 100 yards.

Anyway, I tried the 107 gr Sierra Mk and found it held extreme accuracy up to 3600 fps so I used that bullet.

On game this bullet is a relatively poor performer. On chucks past 800 yards, you better score a front end hit or the chuck will get down its den.

Still, if you connect in the front end it will instantly anchor a chuck out to at least 1055 yards which is my personal best one shot kill range.

On larger game such as coyotes its a different story. There is enough mass and resistance in the coyote to disrupt the bullet more and clean kills with this round and bullet combo are even more dramatic then on chucks at ranges out to 900 yards.

I would feel very comfortable shooting pronghorns on the open prairie out to the half mile mark. Deer I would limit to 600 yards like you say and to open country.

This 6mm is actually the reason I am building my 338 Kahn. I simply need more frontal area and energy for positive kills at ranges out to 2000 yards then the 6mm-284 will ever produce.

The 338 will drive the 300 gr Mk to 3100 to 3150 fps out of the 34" Lilja so it will certainly hit hard at 2000 yards. Trajectory and wind drift will even rival my 50 BMG at extreme range.

Still the 50 has a "slight" edge in terminal performance over the 338 Kahn [img]images/icons/grin.gif[/img] !

Good Shooting!!!

Kirby Allen(50)
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

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Web Page: www.apsrifles.com

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