What’s the threshold for the guns we’re talking about in terms of caliber and fpe?
.308 or larger. .257 if over approx. 150 fpe .
With Bigbore it is okay to be tethered.
5 shot group minimum.
Everyone agree?
Upvote 0
What’s the threshold for the guns we’re talking about in terms of caliber and fpe?
I have not done a 100 yard zero yet with my .357 but did do a 60 yard zero. Have a 100 yard zero with my .30 but doing it 100 % of the time might be a bit more challenging outside and I don’t have enough trigger time on my .45 yet being I like my other calibers better at this time.
![]()
![]()
What’s the threshold for the guns we’re talking about in terms of caliber and fpe?
How about a 5 shot @ 170 yards MOA? The whole 10 shot group is something Ted came up with. IMO this doesn't test the gun but the shooter's concentration. 3 or even 5 shots will do. If 3 shots good enough for military and law enforcement it's good enough for me.
A nitpick I know, but an important one: Ted Bier didn't invent the ten shot group, it has been used by shooters as a standard for a long long time. I suspect Ted uses the ten shot group because he is a scientist, and understands the statistics behind it. Long story short, when testing the capability of a gun, 10 shot groups are better..... it is a math thing. Even if you're just looking for a quick and dirty zero, 3 shots doesn't really cut it.
Rather than diving into the technical side, I'd suggest a simple experiment. Put up a target with ten bulls on it. Shoot a three shot group holding for dead center on each. Now look at your target. Each of the three will, aside from a few fliers, tend to cluster so each will look like a reasonable group. Target to target though, these clusters will be all over the place. If you overlayed them, they wouldn't all line up in the same spot but instead would generate a much larger group than you'd have thought given the size of each group of three. That matters for two reasons. First, the goal of paper punching like this, aside from honing your skills, is to generate an understanding of the true angular MOA capability of your rifle. Shots will land in a standard distribution, and that is important and leads to the second reason: you want your crosshairs to be set for the center of that standard distribution, that is to say the area with the highest density of probable impacts.
I hope that makes sense.
Good enough for the military? Anyone ever heard of "good enough for government work"? One vote for 10 if possible. 5 is ok.
FYI- AAA 357 Slayer can do 1 or sub MOA if you do your part. Note there is a difference between slugs and pellets. Unfortunately, I just sold it.
How about a 5 shot @ 170 yards MOA? The whole 10 shot group is something Ted came up with. IMO this doesn't test the gun but the shooter's concentration. 3 or even 5 shots will do. If 3 shots good enough for military and law enforcement it's good enough for me.
https://youtu.be/FT-f22xwF0U?t=796
For a big bore that is awesome. I have owned the Quackenbush Bandit .50 years ago & now own a .457 Extreme. I never tried past a hundred yards.