Okay, I have read all the posts I really have cared to read regarding 100 yard groups, and practice when you don't access to longer ranges, and all that comes with rifles guaranteed to shoot sub half minute groups. And frankly we all should realize that 90% of the battle is the shooter and not the rifle.
If we missed it, you should realize bullet manufacturers don't guarantee factory match ammunition to .25" and if you are going to chase handloads to find that perfect load you are gonna be stuck doing "load development" for a very long time.
By now we should know where I stand with 100 yard groups. To refresh your memory, I can't stand them. I think they are counter productive to good shooting, and are simply a lesson in futility. So, with that, I have a target that I do think has practical application to help the tactical shooter. So, I made up a Sniper's Hide Practical Tactical Target for people to download and shoot.
This
Practical Tactical Target has a spot at the bottom for you to zero your rifle so you are centered up on the target. If you want to shoot 3 rounds or 5 rounds I don't care, you can even shoot one round cold bore there... the point being use the bottom target first. Then you'll find 15 very small targets for you to put 1 round on each target. You don't have to shoot them all in a row, you can mix it up, but the idea is to put one round in each target hitting the black. Practice this and you'll be much more proficient when it comes to engaging targets down the road, whether it be a 1000 yards or 1000 yards.
Here are the links to the targets created by Sniper's Hide for Tactical Shooters.
1.
SH Dot Drill Target
2.
SH Advanced Dot Drill Target
3.
SH Competition Dot Drill
4.
SH Group Shot Target
These are the most common ones features on the site.
Here is a jpg of the actual target:
Good luck and keep practicing...