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Inferno RBT Slugs

A few years ago, I was shooting my newly acquired .35 cal Jkhan N400 at 50 m with JSB 81 gr pellets with reasonable accuracy. I was approached and asked what am I shooting, after explaining what I am shooting and that the 50 m accuracy is ok but at 100 m I can’t get acceptable accuracy. He said why don’t you try some of my Inferno .357 cal 130 gr HP/ RBT slugs and proceeded to show me a photo of a grouping he shot in a big bore rifle competition with his air rifle.

He said he came third and I knew I am going to like this guys because that is something I like doing, shooting an air rifle against a rifle.

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I purchased a tin of .35 cal Inferno slugs and with a small amount of testing was able to shoot my first sub MOA grouping at 100 m.

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Being mainly a pigeon shooter, I want to shoot slugs which I manufacture. I purchased a 30” TJ .224 cal 1:14 barrel and a NOE mould. I installed the barrel on a Kral Puncher One and a mighty fine pigeon shooting air rifle was born.

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A few months ago, my wife’s tells me, she wants me to stop cast slugs as she is concerned about my health . I agreed because as I grow older it’s becoming a grind to cast, size, weigh and lube slugs.

I purchased a 700 mm Slug A .22 cal liner and proceed to test JSB and H&N slugs, sorry they just don’t match up to the pure awesomeness of 44.2 gr at 860 fps.

I purchase a tin of Inferno .25 cal 43 gr HP/RBT slugs, after a few test shots I found the sweet spot .

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This slug really cut through the wind and was matching fpe, accuracy ( 3 shot grouping 1/2 MOA) and DRT factor. The real test came when I tested them on one of my favorite and hardest pigeon shoot because of far distance and strong winds.

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Well the 25 cal RBT slug hammered the pigeons and this shoot produced my best success rate. My poor SPA P12 was straining to shoot these slugs , it was maxed out and stressed to the point where parts started to break in the air rifle. 

Now I have a great slug but no air rifle to shoot them in and I am in no hurry to buy another slug liner. Sometime back I convert my 357 cal to a 30 cal with a TJ liner 1:26 twist which shoots JSB 44 gr sub MOA in ideal conditions but not out in the field in high winds. 


I scratch my head why I don’t read more about RBT slugs on the forum because to me they are great.

I contacted Inferno to see if they have 30 cal RBT slugs, I was told they have ordered dies from Corbine but are waiting for delivery. Six months later I receive a call from Inferno to say they have received their dies from Corbine. 

Straight away I order a tin of their 30 cal 70 gr HP/RBT.

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First few shots at 890 fps produced a respectable grouping, I increased the velocity to 920 fps and the grouping started to open up. I dropped the velocity to 880 fps and the grouping tightened up.


Man these RBT slugs just don’t disappoint, the litmus test will be a pigeon shoot .









 
Nice project guns..awesome shooting...I just started casting..between the odor n time consuming process is not the easiest task to do if you don't have lots of time..but I hate more having to pay for bullets when I could do my own...the only seller I found casting for. 223 wanted $55 per a 100pcs when I could just purchase 25 pounds of lead .n make 1000 bullets..n every time I want something new I just buy a new mold...but if you shoot a lot of slugs you could buy a press from Corbin , send him a sample of the slugs that work for you and the exact dies will be made...so you dont have to go through the process of experimenting...no fumes an you could do it with thinner gloves so you have the less contact with lead possible. 
 
@ Mercado

Thank you for your input and advice.

Being on Christmas leave, I had sometime to go on a morning Rock Pigeon shoot at a feedlot. 
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I shot pigeons from 50 - 152 m with great ease, but did notice passed 120 m reading the wind becomes a challenge. 


I also noticed on this shoot that the slugs have a slight twitch in flight, I will drop the velocity down some more. I see Hunter One shoots his 457 cal with RBT slugs at 855 fps.

I made school boy errors trying to reading the wind, I didn’t even notice when the wind dropped, hence the not so great shooting grouping.

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Wo nice looking pcp..how fast it could move those 90g .. a friend of mine used to have one in .22 really accurate rifle..wish I have the time n knowledge to machine my own parts like that..need to see where I could take machinists classes..I could imagine n design in my head 3d n I have done things with rudimentary machines...but with the right knowledge I could buy a milling and lathe to make my own parts..thanks for the pics .. I cast this today..well I try lot of work to do it perfectly but I get there..soon.
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I am so jealous of the air rifles you own and possibly adding a 45 cal to the stable 👍

I appreciated all Cedric and Doug have done for the sport of air rifle shooting, what they have forgotten about long distance shooting I still have to learn.

I was reading an old article written by Bob Sterne, thought I will share.

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I apologize that this has been cut and paste from another forum.


 
Great article that Bob sterne is a book of knowledge..you want to know what is funny..n I envy the space you have to shoot.. because I live in the city between my shop, the rent property's..2 private schools to pay I have no time to go to my friend land to really enjoy those rifles .. aside been able to test shoot in my shop space..the .223 or the 2 texan have not seen day lite..in a year that I have them and the 257 talon door has been only shoot 2 times in my friend land in 2 1/2 years..😒..the first time I shoot that .257 it was at 170y and it made it look like child play..n I knew I have to find a way to make the .223 because there were a lot of similar bullet molds between the two..long range shootin it's what I really enjoy about this sport..way to much to learn..


 
Last weeks slug accuracy testing conditions where less than idea. The 85 gr RBT was handling the 30 km/h well, I thought how well would it shoot in no wind.

Yesterday afternoon I managed to get some range time in perfect conditions, I started with 70 gr, 75 gr 80 gr , I had picked up 25 off 82.5 gr and then I shot my best air rifle grouping at 100 yards with 85 gr HP/RBT.
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After shooting this grouping, I adjusted the hammer spring to carry on testing the other weight slugs at different velocities. Unknown to me at the time, I had loosened my home made silencer and destroyed 3 of the 5 baffles.

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Even with a very damaged silencer the 85 gr RBT still produced acceptable groupings.

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I have managed to repair my broken silencer and have been waiting 4 weeks for the rain to stop.

Went pigeon shooting at the feedlot and when the pigeons stopped coming in, I placed my gong out at 179 m.

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Before I show you the grouping, the wind always blows at this feedlot. 
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I am a person who fiddles and tries to make things better, the combination I have of a 30 cal TJ liner and Inferno HP/RBT slugs is great. In closing, when I shot this combination, I feel like a shoot pro.