Nielsen last 30g slugs

Is amazing how a slight change in form could make a good slug .. go to a unusable slug.. I managed to get 9 boxes of the old. 30 47.5 g months ago they shot awesome from My uragan..purchased a sample of the same slug a week ago.. n the 3 weights 43g - 47g - 53g n I could see them spiral all the way..or going up n down as they like..switch to the old 47.5 everything went great again.. how are the .30 Nielsen working on your AGT guns..? Difference to the eye is hard to see..
 
@mercado A few things to check to match up a new slug with the characteristics of the old... Measure the new slug's diameter as compared to the old slug's diameter. Are they the exact same measurements? Also, push both slugs through the barrel with a cleaning rod to feel the difference. Is one tighter to push through? Then, look at the difference in how the slugs contacted the lands and grooves, as the bearing surface may have changed along with diameter. Is there more contact length and or groove depth on one?
 
I have to agree with the OP - I've had NSA slugs that worked well and then were no longer available. I reached out and was they improved the slugs and the old one was no longer available. I have question this course of business as we never seem to know what they were improved for, but totally don't work in the gun the old ones did. Very frustrating and while I like what NSA does, just making slugs not available any longer doesn't work for me. 

There are other makers that make excellent slugs and don't screw you with changes. 

There were a few other threads regarding the NSA 49.5gr slug changing from a near flat back to a dish back and many people no longer had working slugs. Tis a shame. I don't buy NSA any longer. 
 
Gerry52 .. sorry for my English..😁.. fixed.. is something that happens to almost all manufacturers that why you can't purchase a gun with a specific pellet in mind because with time it changes.. sometimes jsb batches are bad.. 18g - 25g .22 n more recently they discontinued the mk1.. my .25 like the old mk1 the mk2 go spiraling all the way... the last 4 years I been labeling the slugs that worked for me in order to send them to Corbin to have dies made .. just in case they decide to change again.. I appreciate all the work Nielsen has done to give us affordable slug package..
 
We made changes when we went from hand made slugs to high speed press. For some this is a great slug for them and others it was not. Based on the volume of those slugs we sell they must work well for a large selection of guns. We will keep coming out with more slug options but all this takes money and time. 

Our slugs came to a very affordable price when switched to this design on the new presses. We can't make one slug that works in every gun on the market and we can't come out with 10 designs to the meet the specs of every gun either. Over time a new slug we come out with may work well for your gun and be at a price point that makes them attractive as well.
 
  • Like
Reactions: BurntDog
IMG_20220715_132655~2.jpg
The newest one on the left hand side. Both are NSA .30 47gr slugs. The new one is about 0.5mm longer - more bearing surface.

Does anyone have any luck with them?
 
I have some old 47.2 and new 50, 55, 60

I've mainly been shooting these out of an AEA Terminator 30. The 47.2 I was using more in the Guantlet 30.

The 55 and 60 are frankly amazing out of this gun and exceed pellet performance easily.

But since I have one weight in the "old" and three in the "new" it's not a very scientific comparison. And I'm happy with sub 2 MOA on a semi auto platform.

Either way I'm satisfied with what I've been getting from NSA lately and I haven't really noticed small defects as much as the image above shows. Bad batch maybe?
 
As a note when I said old I was referring to the first batch made from the new automated high speed press .. like the one Seeker has in his post .. the ones used by Cedric in his uragan video..those worked awesome those dies were changed all 3.. the 43.5 -- 47.5 -- and 49.5 ..that's why the new dies from like one year ago suck.. but I imagine that most of the .30 pcp sold are FX..so they should be working great on those...