Testing Griffin New LDC Slugs

Forums Pellets, Projectiles, Slugs, & Ammo Testing Griffin New LDC Slugs

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    AirgunBill
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    Recently I posted that Griffin Airgun Ammo was producing a new slug designated as LDC or (light density core). This core is a poly bead that is suppose to aid in expansion on impact. They posted a video on Youtube recently showing shooting into ballistic gel blocks and the slugs looked promising. Of course I am of the opinion to match the gel blocks weight to the pest or games weight to approximate the same resistance to the slug as the target for expansion. So I took a block of gel weighing in at 16 ounces to approximate the weight of a pigeon. For me that is a good starting weight as pests and birds weighing less are most likely to be terminated with any pellet or slug when hit. I was shooting my FX Dream Pup in .22 for the two LDC type .22 cal slugs weighing in at 18 grains. The Dream Pup was set-up to shoot the NSA  17.5 g slugs at 48 yards at about 920 fps so that is how far I set-up the gel block. I have to say I was very impressed with the expansion on with the .22 cal LDC slug. I did shoot them for accuracy but I was not in my best shooting for that day. The next day I tried out the .25 cal 28.5 grain LDC in my FX Crown shooting them at 895 fps. Out of the first four shots only one slug had any expansion. Looking at the small hollow point and thinking the lead at the tip was holding it together I decided to drill out the tip. Finally after increasing the drill size to 3/32" drilling down to the poly ball I got reliable and exception expansion. I did video each testing session but also took a picture of the .22 cal. slugs expansion compare to the 17.5 grain NSA's and did a picture of my written summary of the 25.caliber if you do not want to watch the videos. Bill

     

     

     

     

    The .22's

     

    https://www.youtube.com/watch?v=sSQ2LKXAXT8&ab_channel=GunPowder%26AirPower

     

     

    • This topic was modified 9 months ago by AirgunBill.
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    Redick
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    Been waiting on this..Now let me read a watch I'll comment after.

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    airgunmike56
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    I bought a 120 sample pack of 177 caliber Griffin slugs at 11 gr 

    Have not got a chance to try them out yet,

    To many irons in the fire right now.

    Mike

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    Redick
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    Man those Griffins were making some noise on impact sounded something mean

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    wahoowad
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    I am surprised they produced the .25 version in such a way that they do not expand. In some ways you can argue it isn't always about expansion, but downrange accuracy and energy. But it seems like these are intentionally marketed for expansion given the bead yet they don't seem to expand due to the thickness. Why would they make them so thick or not have an adequate hollowpoint to start with? Are the slug manufacturers simply pouring lead into molds they design or do they have access to software that helps them design an optimal ballistically shaped projectile? Seems pretty obvious you need a cavity inside and appropriately thin walls to allow expansion in a pesting slug.

    The bead sounds like a good idea. I wonder if we will get tipped slugs similar to the Hornady varmint ammunition I shoot in powderburners? A tipped slug will still need thinner cavity walls for that tip to deform the lead cavity wall.

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    AirgunBill
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    wahoowad

    I am surprised they produced the .25 version in such a way that they do not expand. In some ways you can argue it isn't always about expansion, but downrange accuracy and energy. But it seems like these are intentionally marketed for expansion given the bead yet they don't seem to expand due to the thickness. Why would they make them so thick or not have an adequate hollowpoint to start with? Are the slug manufacturers simply pouring lead into molds they design or do they have access to software that helps them design an optimal ballistically shaped projectile? Seems pretty obvious you need a cavity inside and appropriately thin walls to allow expansion in a pesting slug.

    The bead sounds like a good idea. I wonder if we will get tipped slugs similar to the Hornady varmint ammunition I shoot in powderburners? A tipped slug will still need thinner cavity walls for that tip to deform the lead cavity wall.

    Okay I found out after posting my experience over on Lead slinger Youtube's channel who makes the Griffin slugs that the .249 diameter slug have a smaller hp than the .250 diameter slugs. I am not entirely up on all features of these slugs since they do have a wide selection range but I hope to be getting some of the .25 caliber slug with the larger hp.I will then do more testing and show the results. Thanks to Lead slinger for responding very positively to my comments. Bill

    PS I removed the review on the Griffin .25 caliber slug till I can get the ones they offer with the larger hp and poly insert. 

    • This reply was modified 9 months ago by AirgunBill.
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    JungleShooter
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    AirgunBill

    PS I removed the review on the Griffin .25 caliber slug till I can get the ones they offer with the larger hp and poly insert. 

     

    Bill,

    you're a good man — this is the kind of honesty and fairness I'd hope all posters and reviewers had.

     

    Matthias

     

     

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