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OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

 
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  #15  
Old 03-11-2010, 09:28 AM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

I had a fellow on this forum run Quickload for my 06 with RL17 and a 200 grain accubond. At 54 grains I was running 2712 FPS from a 22" barrel and Quickload estimated 65KPSI. The quickload velocity estimate was very close to my actual velocity so I think its estimate it was pretty close. I decided not to run the charges any higher since I like to limit my pressures to around 65K.

I would think a 308 with 4" more barrel would run similar velocities to an 06 at similar pressures. I would also mention that the MSDS sheet for RL17 indicates 17 is different than the other RL powders chemically so I would not draw any conclusions about the temp sensitivity of 17 based on the the other RL powders.

I have been very impressed with how clean it burns and it seems to meter better than RL22 or 4350 has for me.

I would think this is going drive further inovation in powder performance by other manufacturers in the near future.
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  #16  
Old 03-11-2010, 11:13 AM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

Quote:
Originally Posted by Fitch View Post
Mike,

What was your COL and barrel length?

Thanks
Fitch
OACL is 3.015" in a 26" 1:11x barrel.
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Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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  #17  
Old 03-11-2010, 03:57 PM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

Great to hear those results Michael be sure to post your results when you get some groups shot.
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  #18  
Old 03-11-2010, 04:06 PM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

hey if the recoil is a bit to much there is a thing called a muzzel brake.but not feeling some recoil you feel like you are shooting a 22lr.but hey glade to see sone one else other than the guys are snipeshide trying R17 and a 208-210gn bullet.

soon as I can get some I will be testing with a 210gn berger BT.and yes I will keep ya'll up to date on the results.
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  #19  
Old 03-11-2010, 05:23 PM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

If Michael is referring to competition as far as F-Class or some other forms of competition muzzle breaks are not allowed, not sure the rules as far as bench rest though. Looking forward to seeing the results of the 210's
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  #20  
Old 03-11-2010, 05:37 PM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

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Originally Posted by CA48 View Post
If Michael is referring to competition as far as F-Class or some other forms of competition muzzle breaks are not allowed, not sure the rules as far as bench rest though. Looking forward to seeing the results of the 210's
That is exactly what I am refering to. For my practice rifle and hunting rifle the recoil is very managable but 2 days worth of shooting 40-60 rounds would suck. Since there are no muzzle brakes allowed in matches, the 260, 6.5x284 and 7mm-08 seem much more user friendly. From a hunting standpoint, of the 260, 7mm-08, 6.5x284 and 308, the 308 running the 208 at 2650-2725 FPS is unbeatable for wind, retained velocity and energy.

I will be at the range later after work and will have some actual groups to make some real notes. I will be running 48.0, 48.5, and 49.0 grains at 3.015" just touching the lands.

M
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Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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  #21  
Old 03-11-2010, 06:12 PM
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Re: OK.....I am a believer. 308/RL-17/208 AMAX = sweet spot

Quote:
Originally Posted by Michael Eichele View Post
OACL is 3.015" in a 26" 1:11x barrel.
I tried it in QL just for fun. QuickLoad predicts 2,698 fps, you had 2,717 - the difference of 19 fps is just 0.7% which is phenomenally close to what you are getting. The pressure predicted is 67,524 psi which might not show pressure signs in a well chambered rifle. It's over by ~7,000 psi but that might not be noticable.

Fitch
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