SK Ammo
- Thread starter MarkCZ
- Start date
What shoots best....
I just went out and played with a new lot of pistol match special. I will not be buying a case as I was having 10moa flyers at 200. The last case I was holding moa to 100, about 1.5moa after.
So the rest of that brick is close range ammo.
Long range match has been good to me, but again I shot a brick that produced tiny groups and bought a case. It's dwindling so I need to find more and test again.
I shoot lots of SK+ for practice at closer range. Never get too worked up on the misses with it at distance as it will fall apart from the velocity ES.
I just went out and played with a new lot of pistol match special. I will not be buying a case as I was having 10moa flyers at 200. The last case I was holding moa to 100, about 1.5moa after.
So the rest of that brick is close range ammo.
Long range match has been good to me, but again I shot a brick that produced tiny groups and bought a case. It's dwindling so I need to find more and test again.
I shoot lots of SK+ for practice at closer range. Never get too worked up on the misses with it at distance as it will fall apart from the velocity ES.
It varies highly from lot to lot. I’ve had Rifle Match that barely outperformed CCI SV. I have a lot of Standard + that outperforms all but the best lots of Center X. I’ve had lots of Pistol Match that were great. I’ve had lots that sucked. I have some BiathlonSport that beats anything I’ve tried past 200 yards. It’s a roll of the dice.
I bought a couple bricks of Rifle Match a while back, it didn't perform any better than CCI-SV. Figured it was because I was shooting Rugers, so I put it away and waited until I got a Vudoo, wasn't impressed with it out of that either. I have two different lots of Pistol Match that are both pretty good, and definitely better than the RM I had. I bought half a case of PM originally, then another case when the limit was lifted from Champs. Those two lots are ~10fps different MV, but SD/ES good, so I'm sticking with that for now.
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I've got a CZ 455. Both the red and yellow SK shoot very well out of the rifle. The red seems to perform just a bit better, but I have zero qualms about grabbing the yellow.
You really do just have to try it and see.. I have some sk+ that I would shoot a benchrest with..but it’s terrible at 100..I have some skrm that will shoot great 8 out of 10 shots at 200 but with with throw 2 low by about 6”..my SKLR is more consistent for me. It won’t group as good as the 8 shots from the skrm but it averages better because it doesn’t have those random weird ones. Everything in this rimfire game when it comes to ammo is a try it and see..and when you find the one that works, you go all in..as much as you can.
Ammo that shoots very well at 50 but is "terrible" at 100? That doesn't make sense.
If a lot of ammo shoots well enough for BR at 50, what can possibly occur to the bullets themselves that causes them to loose their accuracy only after they pass the 50 yard mark and fly out to 100?
Well the first thing you might think about is bullet shape. A 22lr bullet is closer in shape to the 45 ACP than a Sierra boat tail. It was never designed to be accurate at long range. Even 100 yds is pushing its accuracy limits. Accuracy past 100 is totally dependent on conditions. Temperature. thermals, wind. Everything effects it. These things also effect accuracy at closer ranges like 50yd benchrest. but not as much.
Great at 50 yards, horrible at 100 yards, pathetic at 200 yards, right?
What could cause such results?
Wind loading would cause increasing spread as time of flight increases.
Velocity differences changes time of flight causing vertical spread.
Cartridge defects along the lines of asymmetry, off center balance point,
create an uneven wobble, so yeah, increase the distance increases the spread.
Almost a predictable amount.... double the distance, triple the spread, right?
What could cause such results?
Wind loading would cause increasing spread as time of flight increases.
Velocity differences changes time of flight causing vertical spread.
Cartridge defects along the lines of asymmetry, off center balance point,
create an uneven wobble, so yeah, increase the distance increases the spread.
Almost a predictable amount.... double the distance, triple the spread, right?
I just picked up a brick of standard plus at a relative bargain price, having heard so many good things about SK and Lapua. Got a new rifle that won’t chamber eley contact ( too bad as it shoots accurately- but doesn’t matter if it won’t feed- Kidd semi auto) which I have a ton of and less than two bricks of SK / lapua
Bullet shape remains the same between 50 and 100. When all other things remain equal, if it's BR-accurate at 50 what could change to make the same ammo become inaccurate at 100?
You can't have your cake and eat it too.Great at 50 yards, horrible at 100 yards, pathetic at 200 yards, right?
What could cause such results?
Wind loading would cause increasing spread as time of flight increases.
Velocity differences changes time of flight causing vertical spread.
Cartridge defects along the lines of asymmetry, off center balance point,
create an uneven wobble, so yeah, increase the distance increases the spread.
Almost a predictable amount.... double the distance, triple the spread, right?
When wind changes are increased, MV variation expands, and/or there are more "defects" no .22LR ammo will perform well at 50 or 100.
The question remains -- If the ammo shoots very well at 50, as the poster in question says, why would it change its performance as it goes to 100?
The obvious explanation is that the ammo in question is not as accurate at 50 as was described. If it sucks at 100, it can't be.
I hear ya' G.
Problem may be differences in ammunition, right?
Can't shoot the same cartridge twice can ya'? Once at 50 and once at 100 yards to truly compare.
Cartridges are not identical so results are unlikely to be identical.
Blaming loss of accuracy, due to distance alone, when using two different cartridges is illogical.
I'm more likely to blame differing results on wind or cartridge differences
than to attribute it to bullets suddenly deciding to wander off trajectory just for fun.
An object in motion remains in motion, unless acted upon by an outside force, eh?
Problem may be differences in ammunition, right?
Can't shoot the same cartridge twice can ya'? Once at 50 and once at 100 yards to truly compare.
Cartridges are not identical so results are unlikely to be identical.
Blaming loss of accuracy, due to distance alone, when using two different cartridges is illogical.
I'm more likely to blame differing results on wind or cartridge differences
than to attribute it to bullets suddenly deciding to wander off trajectory just for fun.
An object in motion remains in motion, unless acted upon by an outside force, eh?
I am just telling you guys what I see..I have zero reason to get on here an exaggerate how that particular lot of SK Standard + shoots at 50 yards..
As far the sk standard + i mention not being as accurate as I "described" it actually won a benchrest local comp. The person who put on the match and scored the cards is on these forums. he can chime in if he wants..
I will say that you have it backwards though, ammo that shoots good at 100 will more than likely shoot great at 50..From my own experience, I would not say what shoots great at 50 is guaranteed to shoot great at 100..It can absolutely, but it's not a guarantee.
As far the sk standard + i mention not being as accurate as I "described" it actually won a benchrest local comp. The person who put on the match and scored the cards is on these forums. he can chime in if he wants..
I will say that you have it backwards though, ammo that shoots good at 100 will more than likely shoot great at 50..From my own experience, I would not say what shoots great at 50 is guaranteed to shoot great at 100..It can absolutely, but it's not a guarantee.
I agree with ya' LS.
If it does well at 100 it'll be great at 50 yards.
I still want a 200 yard indoor facility with targeting sensors at 25 yard intervals.
Track every projectile as it lofts downrange and find out if some ammunition
spirals back into a tighter pattern as it passes through the tracking sensors.
If it does well at 100 it'll be great at 50 yards.
I still want a 200 yard indoor facility with targeting sensors at 25 yard intervals.
Track every projectile as it lofts downrange and find out if some ammunition
spirals back into a tighter pattern as it passes through the tracking sensors.
Quantify your statements Gentlemen. One man's great is another man's pathetic or vice-versa. And state results in MOA or mrad to compare apples-to-apples at various distances. Then can think about all of the factors presented in the posts above in the proper context.
