Today was deer-camp's designated "verify your zero" day.
12 mph wind from left-to-right.
Targets were 0.9" diameter "dots" with the colored region being 0.8".
Range was 100 yards and shooting from a bench.
First shooter
1.6", three shot group. Centered about 2" high at 100 yards. The shooter elected to call it good.
Due to the small size of the dot, he was aiming "sun over the yard-arm and to the left of the mast" because the thickness of the cross-hairs of the reticle completely covered the dot.
Second shooter
1.5" group. Dead-nuts or slightly high for elevation (remember, the sun/yard-arm/mast has the center of the aimpoint about an an inch below and to the right of the center of the dot) and impact about an inch to the right of the real point-of-aim.
That shooter elected to not adjust his scope.
My turn
I was curious to see how I would do with the 5.56mm NATO, bolt-action carbine that I might use during antlerless season. I speculated that I would print a 2" group centered about 2" above the circle.
Much better than I expected. The group is much smaller and the zero, with this ammo, is about 1" above the center of the crosshairs.
I left before anybody asked me to repeat the performance.
My preference for a 100 yard aiming point is a 60 degree triangle, 1 inch on the sides. The vertical cross hair goes through the "point", the horizontal crosshair aligned with the base.
ReplyDeleteI find it a much more definite aiming point than a circular one which is, I think, based on competition shooting where the bullseye and the concentric rings are used for scoring.
I make mine in Microsoft Word and print them off as needed. I'm not mean, just "budget minded" ... Ahem!
Phil B
"I left before anybody asked me to repeat the performance."
ReplyDeleteTrue anytime I do anything resembling adequacy.
I always liked the diamond target, that works for both scopes and iron sights- https://www.amazon.com/Sighting-Target-100-Yard-Precision-Shooting/dp/B08GY8CJCN/ref=ast_sto_dp_puis?th=1
ReplyDeleteI use similar targets for sight in.
DeleteBest, I think, for error measurement and correction.
Last week I shot a 1961 Marlin M60 at a measured 100 yards. 8 to 12 gusting 15 direct left cross wind. Elevation 1" low, 3 to 6" to the right. Between gusts I got in the black, but not very often. Standing, no sling. Took a long time between shots. I really concentrated on breathing. I didn't take the shot if it didn't feel right.
ReplyDeleteOriginal scope, some lesser brand. Maybe someone knows the make.
Black Ridge Sport 4x32
DeleteThe scope looks old enough I thought it 'original'. Ha
That is some darned fine shooting. Light weight, longish barrel with an under-barrel, tubular magazine...catch the wind and wants to sail.
DeleteYessir, darned fine shooting!
A 1 MOA group, off the bench is probably demonstrating the ammo and rifle capabilities. You had almost no flaws in how you shot the gun.
ReplyDeletePeople that don't shoot think what you did is easy. I love putting those people behind an accurate rifle. They quickly discover there is more to this than appears. Some very few want to learn.
Those I will expend effort on. My best students went on to exceed my capabilities. And I suffered the sin of Pride.
Back in my prime I traded any rifle that did not have less than 1" moa with 3 shots. A rifle shoots different with a warm barrel over a cold barrel. I have 3 working rifles, 30-06 for big game, 10-22 for small game, and a 6.8 SPC for varmints on 2 or 4 legs. The Bushmaster is because a 5.56 needs to be handy and the same goes for the WASR that is NIB with a case of 2 spam cans and a bandolier of magazines.
ReplyDelete