Shooting long range help

MTbackwoods

Well-Known Member
Joined
Mar 5, 2020
Messages
218
Location
Montana
Is there a technique for relating seating depth to horizontal spread? I remember in archery you could read the paper tears so you could adjust the rest, spine, etc...
Perhaps. But it’s a pretty simple solution to try some different seating depths to see if it works itself out. I’m sure someone much smarter than me might have more input as to how to relate the two. But it’s worth a try. If no improvement, look elsewhere
 

MTbackwoods

Well-Known Member
Joined
Mar 5, 2020
Messages
218
Location
Montana
Also, if you can’t call a shot that you may have pulled, ssslllllloooooooooowwwwww down. If you think you might have pulled, you probably did
 

StumpGrinder

Member
Joined
Jul 8, 2020
Messages
12
Location
Sedan, Kansas
If they were exactly identical velocity, bc / geometry, bullet weight, and fired from barrels that exhibited exactly identical harmonics, then you could reasonably expect the same flight paths from 2 different calibers. Someone correct me if I am mistaken.
Many years ago when I was just getting into rifles and deer hunting I read some where that the .50 big had nearly identical ballistics as the 30-06. The .50 shoots 500 grain bullets and 06, 150 grain. I don't remember the exact load data for either, it was 30 years ago! Technology has come a long way since, and this may have been disproven by now however if this proves true then you should be able to duplicate the flight path of the creedmore with the 308 or certainly 06 or Win Mag. Bc and sd being the same or similar and velocities to accommodate for change in bullet weight. However recoil would also increase and maybe that is why the creedmore is becoming so popular. That's why I went from 06 to 308 and also have a 243. From what I've read the creedmore is mild on recoil as is the 257 Roberts. I just don't see the need for a "new" caliber unless there is a significant improvement over what's already available. My understanding is that the main advantage to the creedmore is that ammunition manufacturers are putting much more quality control into creedmore ammo. If the would have done that with 25-06, 264 Rem, 6.5x55 and 257 Roberts the creedmore advantage would probably disappear.
 

L.Sherm

Well-Known Member
LRH Team Member
Joined
Jul 26, 2017
Messages
2,851
Is there a technique for relating seating depth to horizontal spread? I remember in archery you could read the paper tears so you could adjust the rest, spine, etc...
A Ladder test, you can do a powder and seating depth Ladder test.
 

GLTaylor

Well-Known Member
LRH Team Member
Joined
Oct 11, 2019
Messages
606
Location
Cedar Bluff, Al
I must be missing something. This is a hunting rifle, and that group looks to be .6 moa or so at 400 yds! What's wrong with that! It'll kill anything you shoot it at?!?
Now, if you want to shoot bugholes and benchrest, get a diff caliber, a 25 lb plus rifle, 40-50 power scope and an adjustable front rest, rear rabbit ear rest and a bunch of wind flags🤯
 

zr600

Well-Known Member
Joined
Jan 16, 2018
Messages
564
Location
Nd
I didn’t see what kind of chronograph you used that could make a big difference too. I use a megneto speed for my latter test to find the velocity nodes. After that I will test at 100 yards to see how they group. If they group decent I will then make up more of the same load and run it over the megneto speed to get an es sd numbers. I did this way with my 6.5 creedmoor and it worked very well. At 550 yards we were busting fist sized rocks. Now I’m also working on my big game rifle it’s a 7mag have been working with rl26 and retumbo with 180berger vld hunting and Hornady 175g eldx.
 

Laguna Freak

Well-Known Member
Joined
Jan 5, 2015
Messages
345
Location
South Central Texas, just north of the Wall
I must be missing something. This is a hunting rifle, and that group looks to be .6 moa or so at 400 yds! What's wrong with that! It'll kill anything you shoot it at?!?
Now, if you want to shoot bugholes and benchrest, get a diff caliber, a 25 lb plus rifle, 40-50 power scope and an adjustable front rest, rear rabbit ear rest and a bunch of wind flags🤯

Not sure but I think you are confusing posts. OP has not posted any target pix unless I missed something. Otherwise you are spot on!
 

GLTaylor

Well-Known Member
LRH Team Member
Joined
Oct 11, 2019
Messages
606
Location
Cedar Bluff, Al
I read post #31 to be a 400 yd group? If I'm wrong. Disregard. If that is a 400 yd group I'd be smiling!
 

Bdubose

Well-Known Member
Joined
Feb 23, 2018
Messages
49
Location
Texas
You're 100% on 100 yards, not being reliable?!
When I first joined this group I was in load development and got hammered for my 100 yard 1 hole groups.
They all had stories that some rounds can shoot sub 1/2 MOA at 100, and then begin opening up at 300-400 so that at 600 you are better than 1MOA. (Not my experience, but those regarded as good shooters.)
Lots of different theories as to why, but my experience has shown I can tell much more from a 200-300 yard group than a 100 if you are already less than 1 MOA. So now I never shoot at 100 except to zero. I do my testing at 300.
 

Trending threads

Recent Posts

Top