People send me lots of pictures of BR cards and ask me what I think.
First of all....there is very little I can tell by looking at a card with no knowledge of the exact wind conditions and how the shooter held for each one. It would be far better if the shooter aimed at the same place and then said the wind was this or that.
Anyway,...one thing I can tell when I look at a card is whether they had a good vertical zero on the scope. If you have a good vertical zero....you will have an equal distribution of shots above the center line and below.
Even the very best rifles do not shoot a single bullet sized hole for 25 shots. The very best will be at least double... and most more than that at 50y.
So if our imaginary gun shoots a vertical spread of 3 bullets wide for 25 shots....the actual scope zero is in the middle of that group.
I see tons of cards that have no shots either above or below centerline. 15-20 shots all hitting near centerline in vertical and then some low misses. If the shooter simply raised the scope zero a couple clicks they would have missed significantly less or none at all.
BR is won by hitting the 10 the most. Hitting dead center won't raise your numerical score...but you will get more xs. If you want to get a higher score....you should stop thinking about xs.
Lots of things can change you vertical zero a couple clicks from card to card. One example...If you use lube...it will take a while for it to be fully distributed over the length of the barrel. Getting on a card immediately may result in a different vertical zero then you had on the last card. If you want to get the most points every time...you should never trust that your vertical zero is exactly the same. A couple sighters that land dead center doesn't mean much if your vertical group size over 25 shots is 3x that size.
I hope this makes sense.
Mike
First of all....there is very little I can tell by looking at a card with no knowledge of the exact wind conditions and how the shooter held for each one. It would be far better if the shooter aimed at the same place and then said the wind was this or that.
Anyway,...one thing I can tell when I look at a card is whether they had a good vertical zero on the scope. If you have a good vertical zero....you will have an equal distribution of shots above the center line and below.
Even the very best rifles do not shoot a single bullet sized hole for 25 shots. The very best will be at least double... and most more than that at 50y.
So if our imaginary gun shoots a vertical spread of 3 bullets wide for 25 shots....the actual scope zero is in the middle of that group.
I see tons of cards that have no shots either above or below centerline. 15-20 shots all hitting near centerline in vertical and then some low misses. If the shooter simply raised the scope zero a couple clicks they would have missed significantly less or none at all.
BR is won by hitting the 10 the most. Hitting dead center won't raise your numerical score...but you will get more xs. If you want to get a higher score....you should stop thinking about xs.
Lots of things can change you vertical zero a couple clicks from card to card. One example...If you use lube...it will take a while for it to be fully distributed over the length of the barrel. Getting on a card immediately may result in a different vertical zero then you had on the last card. If you want to get the most points every time...you should never trust that your vertical zero is exactly the same. A couple sighters that land dead center doesn't mean much if your vertical group size over 25 shots is 3x that size.
I hope this makes sense.
Mike
