This project has been a long time in the making and Utah Airguns and AirMarksman just changed our sport!
Other The Miracle Airgun Slug: Introducing AirMarksman Precision Slugs!
- Thread starter UpNorthAirGunner
- Start date
1 question.
What is the overall length?/ will they play nice in fx mags without cover changes since the ogive is shorter?
What is the overall length?/ will they play nice in fx mags without cover changes since the ogive is shorter?
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That is one of the coolest features of these slugs. They fit perfectly in the FX King / Dynamic / Panthera magazines.
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It was Altaros who changed the sport with their high BC, round nose slugs. Looks like Utah took notes and developed a similar slug. Nice to see other companies coming out with the round nose design.
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Confidently taking credit for other's hard work.
ZAN came out with the ELR slugs, but they didn't say "WE DID IT", they just said: "we're trying to make it more affordable..." As Altaros is super expensive(rightfully).
But competition is always great.
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Nothing sells like excited hyperbole. Will test the .25s when they come out.
I wonder when they're going to move to faster twist barrels. We experimented with subsonic-launched heavy Sierra Matchkings back on the 90s. 77g, .22cal MKs look like needles, buck the wind crazily. Can't really do needles with pure lead...but better nose profiles have been done (better bc than blunts).
Of course, people have created some crazy experimental slugs. I have one that is two-piece. The nose is stiff alloy (bore riding) and the base (groove dia) is pure lead. Impractical but fun!
I wonder when they're going to move to faster twist barrels. We experimented with subsonic-launched heavy Sierra Matchkings back on the 90s. 77g, .22cal MKs look like needles, buck the wind crazily. Can't really do needles with pure lead...but better nose profiles have been done (better bc than blunts).
Of course, people have created some crazy experimental slugs. I have one that is two-piece. The nose is stiff alloy (bore riding) and the base (groove dia) is pure lead. Impractical but fun!
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The first Altoro slugs had a very similar profile to the mp mold round nose boattails that had been designed for some early model of Huben. I always felt like that might be the original for that basic profile
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Sounds pretty cool even though I don’t shoot slugs. I’m waiting for the more precise accuracy and tech data video. For me that one was just 35 minutes of prairie dog smacking, which is awesome but lots of slugs can do that.
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Zan makes great slugs and helped push the sport forward as did Alteros, but so did others in our sport. When I got into this sport back in 2017, there were folks testing boat tail designs in mould form in big bore airguns and .257 custom rigs. The actual shape of the ideal sub sonic profile wasn't designed by Alteros or Zan or anyone in the airgun sector. This shape has been tested by NASA and the department of defense for decades.Confidently taking credit for other's hard work.
ZAN came out with the ELR slugs, but they didn't say "WE DID IT", they just said: "we're trying to make it more affordable..." As Altaros is super expensive(rightfully).
But competition is always great.
The break through that Corbin accomplished was the perfect ratio of boat tail angle and length to nose ogive profile to overall projectile balance of center of gravity and center of pressure. When they put all of those factors together just right and then you match the correct bore diameter to your air rifle, they were able to achieve what no one else has been able to do at such a high level.
I have tested older Corbin designs, Zan, Alteros, and others that have used various Corbin dies to make round nose, spitzer nose, flat nose, hollow-point, and various lengths and degrees of angle rebated boat tail. Everything in the 40 gr. sectional density range at best achieved barely at or slightly above .2 G1 BC. We are seeing radar readings consistently in .23 G1 BC and even higher with these new slugs.
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A 1:16 barrel is all that is needed to stabilize these slugs at the velocities we are pushing them. The rounded nose ogive profile is a scientifically proven subsonic shape outside of the airgun industry and achieves higher levels of precision and ballistic performance. The pointer the nose, the more susceptible the projectile is to instability, even with the slightest non-concentric seating of the slug in the barrel. I imagine it like this..... When your driving down the road, stick you hand out flat like a wing out the of the window slighlty rotating it in the wind. The wind grabs it and pushes it around pretty easily. Now ball your hand into a fist and do the same thing. The pressure of the wind doesn't have as much effect with the more rounded shape. The rounded nose gives us a bit of a buffer of stability in spin without a loss of ballistic coefficient in subsonic velocities.
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I don't shoot slugs yet.
I am waiting for Ronco or Popeil to market some on TV
just mt 2 sents
Edward
I am waiting for Ronco or Popeil to market some on TV
just mt 2 sents
Edward
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I'd certainly be game to try these, once they come in a size that works in my .22 Huben K1. Until then it will be shooting pellets or Zan .219 slugs . . .
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Not my point. Faster twist allows stabilization of longer, higher BC slugs. You may have optimized for a pellet twist (which is what the market demands) but you haven't found the highest BC for the platform.
I used .308, 190g MKs at ~900-1000fps for pistol Silhouette (1:10 twist). Stable out past 200m. The platform (PCP rifle) has a limit for the mass it can accelerate. The slugs have various limitations too. These aspects will be explored, eventually.
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