Finally wrote a proper article on 1,000 yarding and general LR Garand / M14 shooting

Ardent said:
Finally got to writing the article for the site on long reaches with the excellent M1 / M14 sights, hope you enjoy.

http://www.morrisonarms.com/2013/11/reaching-out-the-old-fashioned-way-iron-sights-to-1000-yards/

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I read the article. That's some great shooting. Is the target (white dot on the pic) located northward?
 
Interesting thought, to my knowledge coriolis effect at 1,000 shooting a .308 amounts to around a 1/4MOA, finer than I can make an adjustment for. The real culprit on that group was wind, I was dialing back and forth that whole shooting session on account of variable wind. The RH twist would be responsible for as much as 3MOA of spin drift, and was potentially not fully compensated for as that group was shot in fairly clean air. Wind conditions steadily worsened as I went, good thinking!
 
Spin drift is worth about 1.5MOA at 1000 yards with a 10-twist barrel. Coriolis is worth so little as to not be worth bothering with. JBM is your friend, play with it and see for yourself

The biggest factors are:
- how big a group is the rifle+shooter able to deliver (3MOA or less at 1000y would be brilliant)
- how much wind variation there is (each 1mph change gives roughly one foot of deflection)
 
Excellent article, still working on 100 yards with my enfields and my M305 but have 300 yard range available, will have to try 300 with iron sights on a few of my rifles to see what I can do!!

Rodney
 
Nice target; an honest-to-goodness sub-MOA group at 1000 yards is truly a beautiful thing to behold.

I would assume that this is Norm Anderson's shootoff target for the Wimbledon cup (writeup at NRA blog). The Wimbledon is fired off the elbows in the NRA-US's "Any Rifle, Any Sights" category, which typically ends up being a scoped 6.5-.284 or similar high-performance rifle.

I looked up when Norm won it, looks like it was 2006 according to the WIkipedia entry. The shootoff is three sighters and ten on score, and Norm got a 100-9X for score. Wow - well done!!
 
Most unreal is how centred he is. It's one thing to shoot a group this far out, a whole 'nother to put it in the right place despite breezes, atmospheric variations. I respect hitting targets consistently far more than good groups, guys like that do both. This is why my milsurp matches are scored irrespective of groups, and wholly on how close you are to bull (as any good match should be scored).
 
Ardent said:
Most unreal is how centred he is. It's one thing to shoot a group this far out, a whole 'nother to put it in the right place despite breezes, atmospheric variations. I respect hitting targets consistently far more than good groups, guys like that do both. This is why my milsurp matches are scored irrespective of groups, and wholly on how close you are to bull (as any good match should be scored).
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F-ing right, and I'm sure Mr.Anderson would agree, a tight group off-target is only suppression!
I'd love to just be on a 1000m mound to see what targets look like from that distance, someday.
 
Thanks for the article, an inspiration for sure! I find myself enjoying milsurp irons more and more, and your results reinforce they can definitely be fun waay out there. I also find your results with bullet weight interesting, sounds like I can still play with my 155gr nosler load...
 
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