Home Forums Hunting & Shooting Hunting Rifles T3 Superlite 7mm-08 and 150 ELD-X experiment

Bullets.com has 284 Winchester brass in stock. Made by Norma. Just in case folks don't want to mess with necking up Lapua brass.

What kinda velocity were you getting.

2800 fps





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thats pretty good.

I'll be trying something different this weekend, weather permitting.




I'm trying Varget at .03" off, looking for pressure. The Hornady guy loved Varget for this combo.

I might do the same with Hunter. Seated that far out there's a lot of room in the case.




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Why the .040 difference between each one. I thought .005 was sort of typical

Read this:

http://www.bergerbullets.com/getting-the-best-precision-and-accuracy-from-vld-bullets-in-your-rifle/

.040" off helps me find the sweet spot quickly. I can make smaller changes once I get close.




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You're thinking good Pharm.
Btw....100 yd testing might not be real ideal for those longer bullets..... sometimes they settle down alot as they go down range. Years ago I almost passed up 180 grain Barnes load for my 300 Weatherby this was in the pre TSX days. Best group I could get was about 1.5 inches at 100 yards and I was looking for more until one day just for Giggles I tested it at 300 and it was easy under 3 inches.

It'd be interesting to see what the factory loads did next to the handloads.

Bullets do not "go to sleep". It is a physical impossibility for bullets in flight to self correct and come closer to each other.

So... what would you describe is at work here I see a lot of shooters talk about this phenomenon.

This guy writes about it, but I question him because of his response to myth #2.

http://gundigest.com/shooting-articles-advice/10-rifle-shooting-myths-exposed





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Formidulodis.... has probably forgotten more about shooting than I'll ever know..... I'm hoping he gives me his answer above and I'm sure I'll learn from it.
The guy that did the wooden dowel test seems a little goofy to me because who's to guarantee you're going to get a twig 10 feet in front of your target.? He needs to come Hunt our Wisconsin brush LOL.

So glad someone said it!

The only thing I can think of that would explain it, is that a bullet can take 100+ yards for the gyroscopic precession to dampen out, which causes the bullet to rotate about its axis of travel. If three bullets hit a target at 100 yards, and all three were at opposite positions in their rotational precession range, you'd get larger groups than after the precession is dampened out and the bullets are hitting very close to their center axis of travel.

But, Bryan Litz has said that so far with his shoot-through target challenge, nobody has reported larger groups at closer range than the groups the same bullets print at longer ranges, and that group size is proportional with distance, so that's it. Form is right.

The only explanation at this point is that group size at closer range exceeding group size at longer range is caused by random variation in the precision of the load, and nothing more. If you shot 50 groups at 100 yards, and 50 at 200 yards, the average group size should be proportional to distance, but if you look at only 1 or 2 isolated groups at each distance, you might see smaller groups at 200 yards if they were exceptionally small 200 yard groups and exceptionally large 100 yard groups.

Mule Deer has written about scope parallax creating the illusion of bullets "going to sleep." It is mentioned in his article Factors in Accuracy Part One: Rifles and Shooting on the home page of this very site.

Maybe my older eyes work harder seeing targets at longer range... perhaps it's more a function of aim small shoot small?

Kraky,

Jordan and the others are correct. We've shot over multiple acoustic targets set in line from 100-1000yds and all rounds group in proportion to range. It is possible due to gyroscopic precession to have a SLIGHT difference, however it is a TINY difference.

The most notable was certain rifles meant for extreme long range chambered in 408 CT. They claimed that the reason the guns were shooting 4-6moa at 100m was due to "the bullet not going to sleep" yet, and that at 1000m plus they shot "great". The acoustic targets didn't show that at all, even though some shooters did shoot smaller groups at 300m than they did at 100m. However once we removed the shooters ability to see their rounds impact on target at 100m, their groups shrunk to be inline with their distance grouping. i.e.- the shooters were mind humping themselves.



Once Bryan threw the gauntlet of paying people to actually prove bullets shooting smaller groups at longer range than at shorter range, most of the "going to sleep" nonsense ceased.

The mind hump will do it.

Factory Hornady Precision loads have an OAL of 2.790".

Maybe I'll try that length.





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