22-6.5x47 Lapua 90 grain Bergers

[barnesuser28]

Can anyone give me an estimated velocity for a 22-6.5x47 Lapua shooting the 90 grain berger VLD from a 1:7 twist and 28" barrel? Thinking this would be the perfect 600 yard and beyond prairie dog rifle. I would like to be able to hit 3150 fps with an "extreme" powder (varget, H4350, H4831, etc...). I would have the barrel melonited to get me more than the 1000 rounds of barrel life i would expect/guess. Was thinking a 22 dasher but dont want to do the fireforming and the regular 22 BR wont quite give me the speed i want. And i dont want to do a 22-250 or 22-250 AI because i want to use the small primer pocket Lapua brass. Thoughts? Recommendations?

 

[MrMajestic]

Using Quick Load defaults and a COL of 2.725", to stay out of the "Doughnut" and maximize case capacity, using 100% fill of H4831SC will get you there. 100% fill of H4350 will give you a bit more but at 65.8K psi which is greater than the recommended. Hope this helps and buy QL, you'll love it!

 

[FroggyOne2]

I am using 32.7 grs of H4350 in the 22BR right now with the 90 gr Berger.

 

[barnesuser28]

I am using 32.7 grs of H4350 in the 22BR right now with the 90 gr Berger.

I have been following your progress, and your results are what lead me to want a high velocity accurate 22 cal.

 

[barnesuser28]

Using Quick Load defaults and a COL of 2.725", to stay out of the "Doughnut" and maximize case capacity, using 100% fill of H4831SC will get you there. 100% fill of H4350 will give you a bit more but at 65.8K psi which is greater than the recommended. Hope this helps and buy QL, you'll love it!

Thank you MR. Quickload is on my list of wants, along with a magnetospeed chronograph, and a borescope. $$

 

[FroggyOne2]

I am using 32.7 grs of H4350 in the 22BR right now with the 90 gr Berger.

I have been following your progress, and your results are what lead me to want a high velocity accurate 22 cal.

Test so far with good brass has proven productive.

 

[barnesuser28]

How fast are you running them? IIRC 3050 fps from a 32" barrel?

 

[FroggyOne2]

That was the first guess, according to come ups, over 3100, but actually, I have yet to have the opportunity to run them over a chrony yet. If I can find a data cable here at the house I will see if I can do so here today. I will get back on that one.

 

[manitou210]

two fellows where I shoot have built rifles shooting 90gr vld one in 22-250 and other is 22by47 lapua both have 1 /7 twist both have had success using Imr 4007 ssc powder with lots of speed

 

[wc872]

I have used N560 with good results starting at 34.5grs. & work up. I used Moly 90gr. Berger VLD w/Wolf large rifle primer. The load with the best accuracy was at 2979 fps.
Semper Fi