Excellent results Allen,It seems to me that the ATP king 22 40 grains are not easy to compare 2 other slugs. As it seems the other slugs tend to like faster speeds. That or when their slugs are over sped they do not do weird things like the ATP does. 2 weeks ago I was at the range and fired off the ATP king 2240 grains. This is in my impact mk2 with the 1 in 18 twist 800 mm barrel. It did very well with the exception of the magazine getting stuck just about every time requiring removal of the barrel in order to remove stuck slug. I did fairly well with them although it was hard to keep my concentration when I had issues loading the slugs.
Today I went back out to the range with the 1:14 22 800 mm 22 same gun. It was cold and very humid. It just rained. I don't know what I was thinking but I forgot to crank back the reg when i was home. It immediately fired at 1050fps. Cranking it back I got it down to 930. Turning down the front screw got me down closer to 900. Ideally I need to crank back on the pressure as I am somewhere around 180 bar at the regulator I believe. But wow the ATP started stacking them at 100 yards.
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After about 25 rounds I immediately went to 220 yards and took out the little bunny silhouettes one by one with only a couple misses. I still need better eyes or glass as i still have issues seeing the impacts. I think most shots were a little bit low. I shot some paper at 220 yard to confirm and literally stacked 2 of them just like that. I couldn't believe it didn't want to try it a 3rd shot but of course I was out of slugs in the magazine anyways when i tried. Which by the way was redesigned by Elis a while back, I just now got one of his new ones. Made just for slugs and it did not hang up one time with the 150 or so slugs I put thru it. .
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Of course when I got the magazine refilled the 3rd slug was not in the same hole. The conditions change a little. Since I had to leave earlier than normal I went for 300 yards and started pounding some crow silhouettes. I have no idea how large those are but they are larger. I guess next time I will drive up the to see the size as I was a bit of a bum and had to leave before the line was called. I put down a good 8-10 and I'm sure next time someone will figure it out that it was the guy shooting the airgun who did knocked them all down!
I got the lousy video uploaded and double speed so I can show some of the shots it did. But warning I was in a hurry today and the tactacam was not positioned correctly.
Allen
Yes, and I verified the G1 BC at 885 fps at 100Y last weekend and it was right at the published 0.21 value. I also plugged in the RA4 profile, but there was no difference out to 300 yards. Why would someone want 1000 fps? Use more air? Harsher shot cycle? Harder to shoot accurately? Things that make you go hmmm.... I did take it up to 925 fps, and the gun sounded and shot differently than at 885 fps. It was easy to tell that, least for the 600mm barrel, 90 FPE is about as high as you want to go and still remain accurate and easy to shoot...The BC on these slugs are basically twice as high as traditional high BC slugs!!! This is BETTER than 22LR!! Another step in the ammo evolution, only thing is the cost for now. Hope as manufacture process and scale improve the cost will come down, I know it’s not easy to make a quality non-HP slugs.
As far as get these heavy slugs to go faster, pretty sure the impact is completely tapped out at close to 900fps, I have the same MK2.3 with power lock. If you want to sling them at 1000 fps accurately you most likely have to go Panthera 700mm route, it has the bigger valve and plenum needed to accelerate the heavy 40 grain slugs to 1000 FPS and close the valve in time.
In long range BC is the KING! when I was shooting the 35 grain NSA @850fps, they would out run or have less elevation drop compared to 27.5 grain slugs @950fps pass 150 yards.
Yes, and I verified the G1 BC at 885 fps at 100Y last weekend and it was right at the published 0.21 value. I also plugged in the RA4 profile, but there was no difference out to 300 yards.
Why would I want something like this stable at higher speeds? GREED OF COURSE! Just to be able to have it hit even harder. Maybe not at the expense of a harsher shot cycle. This is the reason I want to try the 60 gr .25 queen more impact at even further distances. And even more stability with the .245 bc. So I'm hoping.Why would someone want 1000 fps? Use more air? Harsher shot cycle? Harder to shoot accurately? Things that make you go hmmm.... I did take it up to 925 fps, and the gun sounded and shot differently than at 885 fps. It was easy to tell that, least for the 600mm barrel, 90 FPE is about as high as you want to go and still remain accurate and easy
Cost? How does it compare to the boutique slugs many of the shooters are using like Griffin, AVS, and others? The .25 Altaros 49.5 grain are about $20 per hundred when ordered in packs of five or more...
I’m in San Diego and I ordered Feb 20th. Got them today. That’s as good as Pyramyd Air….Did you lube these? My initial 100 I tested (although I think they were 32.5 gr) had some fliers, someone mentioned lubing them, so the remainder of my tests were with lubed (just lemon pledge) slugs. Once i had the speeds low enough I had very few fliers. Most of the slugs that did not hit where i wanted, moved either because of me, or reading the wind wrong. But when I did have a flier you could tell because it really went off course. Maybe those I loaded backwards?
Why would I want something like this stable at higher speeds? GREED OF COURSE! Just to be able to have it hit even harder. Maybe not at the expense of a harsher shot cycle. This is the reason I want to try the 60 gr .25 queen more impact at even further distances. And even more stability with the .245 bc. So I'm hoping.
Not only cost but time as well. As I mentioned in another post. when you are waiting for them it seems like they take even longer to get here and were put on a slow boat from China, except these are not from China. I think for SoCal it was close to 3 weeks if not more to get here.
Allen
Wow they did you good! Im just above you in orange county. Maybe this shipment will be faster than the last two. I think of all the dealers krale is the fastest which tends to be 3 days but they don't sell the Altaros slugs.I’m in San Diego and I ordered Feb 20th. Got them today. That’s as good as Pyramyd Air….
At 885 fps they are 86 FPE, and at 200 yards they still have 66 FPE. I think that’s pretty damn good. Glad I didn’t hear “flatter” or I’d have snorted my coffee through my nose in laughter.
Yes on the lube. A quick spritz of Ballistol on the foam in the tin (I transfer them to used pellet tins) and then close it up overnight. No flyers at 100Y, haven’t tried further.
Were can you buy the boat tail pin probe ?Thank you, target size approximately 15cm wide and 20cm high wind was from 9:30 to 11 and it was not consistent but I try to time my shoot between wind gust.
Both both 32.3 and 40gr shoot excellent from 1:16 but I shoot 32.3 because I have a lot of them and they shoot faster on my settings.
BUT please note that due to boat tail pin probe is required And they have 2 downside
1- they are dry and require some lope.
2- if wind is from the right they have a jump but it’s fixed the entire slug flight (e.g. wind 8-13km from the right they will jump 0.2 mil
And 13-20km wind they will jump 0.3 mil
But it’s repeated and can be adjusted for it.
Were can you buy the boat tail pin probe ?
Yes the smooth do have a small chance of rocking in the bore when being seated. Less chance with the kings and queens with the multiple bands. I have not tried the smooth Altaros with a standard probe to see if they shoot any different but maybe I should. I do need to make some time to go to the range.For the .25 Altaros ATP Smooth 49.5 grain at least, I'd stick with the factory probe in the Panthera/Dynamic/King. Its sits perfectly at the tail of the slug and pushes the slug into the breech perfectly aligned. I don't recommend the pin probe in that situation. As far as the .25 Queens, or the .22 Kings, I have no knowledge of those two...