Premier 20ga 2.2” Schrifle™ 365gr Copper slug. “The only totally NEW case & slug round in over 100 years” 

5-3-22

6-14-22

 

 

The only totally NEW slug & case combination in over 100 years.”  The 20ga Schrifle round consists of a new “Hollow Bullet with Truss” Copper Slug and a Rifle Style plastic case.  “The only new hollow bore size (non-lead core) slug projectile in over 200 years”

The 20ga Schrifle™ round is the 5th generation of a hunting slug design and is the ongoing result of over 10 years of research & development. The “out of the box thinking” that culminated into this unique patent design and was only made possible by the advancements in precision machining from the likes of an iso certified machine shop, plastic development, and new molding techniques. Most importantly, the quality control and consistency of the new gun powders over the last decade has vastly improved.

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The slug is a 365gr “Hollow Bullet with Truss” Copper slug and a new special 2.2″ length case.  When loaded with a 365gr Hollow Copper projectile the Schrifle round has an overall length of only 2.690″.  The Schrifle round requires its OWN LENGTH CHAMBER for best accuracy and performance!    NOTE: If a barrel is chambered for the 2.2″ Schrifle round, that is the only round that can be fired in that barrel!    The 2.2″ long Schrifle round is NOT recommended for use in a 3” chamber!     

 (Reference– The right choice slug round for any 20ga rifled barrel with a  3” chamber is the 20ga 3″ NeoTec™ FLC Copper slug round. Details can be found on its own 20ga 3″ NeoTec FLC information page).        

SCHRIFLE (Shri`ful):    “No longer just a slug gun, but not quite a rifle, now it’s a Schrifle.”

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PREMIER 20ga 2.2″ SCHRIFLE™ 365gr COPPER slug round

Thank you for your interest in the  20ga. 2.2” Schrifle™ 365gr Copper, premium bore size, non-sabot slug round. The 20ga 2.2” Schrifle™  Copper round is a non-sabot, bore size projectile. It was designed for use in its own 2.2” length hull and chamber size. Very little has changed with this Premier High Performance 20ga  round. The 2.2” Schrifle™ round will only be loaded with a 365gr Copper slug. There is no conversion back to a shorter length chamber without installing a new barrel.

 

 

The Hollow Copper Slug:

The 365gr Copper slug was the original slug design for the TarHunt 20ga 2.2” Schrifle™ round. It is a high performance, full expanding, copper slug at 1800fps. It is flying at or near the same velocity as other light weight sabot rounds, 26% bigger in diameter and a full 100+ grains heavier!  This 365gr slug is stable in all known 20ga twist rate barrels.

You may be surprised by this heavier slug. Only a 2 1/2” trajectory (above or below) your point of aim for the first 140yds. The current trajectory data for the 20ga 2.2” Schrifle 365gr Copper slug was generated at 50yd; with a group 2 ¼” high, dead center, above your aiming point. This gives you a 130yard zero or (10″ of drop @ 200yds) the amount of drop from the top of the back bone to the heart lug area.    Note:  Your trajectory curve will vary depending on how firm your holding the gun, with your left hand.

 

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“THE TECHNOLOGY: Behind our Hollow Copper Slug.     

The “Hollow Slug with Truss” design removes the lead core used in projectiles for over 200 years and replaces it with a strong, light weight, pressurized, elastomer-polymer truss. This new type of core is flexible enough to allow the side walls of the hollow copper slug to lock into the rifling and upsetting to the inside diameter of the barrel. These two events taking place are critical to insure consistency by eliminating the wild flyers caused by out of round slugs or under-rotated slug. After the slug has upset in size the pressurized elastomer truss remains strong enough to support the thin wall copper o-jive area (pointed part of the slug) from collapsing inward while the slug is being forced thru the barrel. Upon impact, the pressurized elastomer truss also aids in the rapidly outward expand of the o-jive area.

 

 

 

Proper shape and Diameter:

Using this new  “Hollow Bullet with Truss” design, a premier bore size 20ga slug can be manufactured while greatly reducing its overall weight.   The ideal physical size of a 20ga bore size projectile, for use in a 1-24tr barrel, is (1.125ths long x .619ths in diameter). If made of solid Copper, It would weigh over 1000gr. Now a slug can be made with the same physical size and shape, but weighting only 365 grains instead. That’s a 2/3 reduction in weight and a 26% increase in diameter over 45cal sabot rounds. That makes it possible to achieve the same velocities as the much lighter & smaller diameter 45cal sabot rounds, with a full bore size slug. The 20ga 365gr Copper slugs are show here in an actual size comparison to 45cal projectile used in sabot rounds.

Bigger is Better:      

For comparison purposes this photo shows a 1974 Kennedy .50 cent piece; next to an expanded “Hollow Slug with Truss” Copper 365gr slug. It was expanded by firing into a ballistic gelatin block from between 45 and 50 yards away. That range duplicates about 70% of most deer taken with a slug gun. The expanded slug weights 302gr (an 83% weight retention) and it expanded to the size of a half a dollar!

Notice that the expanded nose secton only fold out at right angles to the body of the slug!  They did not fold back along the sides of the slug, making it smaller as it moves forward, after inpact! An expanded slug like the one shown, @1800 fps, is spinning at 54,000 rpm’s (when fired thru a 1-24 twist rate barrel), and still weighting over 300 grains, after it expands. “It acts just like 1 1/8″ diameter hole saw”!      

                                                                                                                                                                                                                                                                                                                    The size ratio remains                                                                                                                                                          the same at any power magnafication

Why is case length so important?

When a shorter case such as the 2.2” Schrifle™ case is fired in a longer 3″ factory chamber, you lose a percentage of your chamber pressure every shot. Because the slug must jump thru (almost ¾” of an inch) of unsealed and unguided area between the mouth of the case and the start of the rifling.  The lost of pressure is even worse in gas operated auto loaders. The question then becomes with this unguided jump, did the slug enter the rifling straight in line with the bore or off center and become a flyer? The front end of the slug should enter the rifling while the rear of the slug is being held in line with the CENTER OF THE BORE by the front portion of the case!  Both Accuracy and overall Performance will suffer every time a shorter case is fired in a longer factory chamber and will the most likely result is vertical groups. The lower the temperature drops the effects of the pressure loss will start changing you impact point. All because the chamber is not sealed can when you are using too short of a case to seal off your chamber.. The colder it gets; the worse the Effect.

When the shorter 2.2” Schrifle™ case is fired in a 2 ¾” chamber the base of slug has left the mouth of the case by a few thousands before the slug will entering the rifled bore. You could lose just a little chamber pressure and maybe minor slug alignment; until the slug enters well into the rifling. Some, but not all,  2 ¾” chambers, will shoot reasonable well using the 2.2” length Schrifle case.

Cause and effect:

That same unsealed jump is why the 2 ¾” (20ga or 12ga) round has less felt recoil when fired in a 3” chamber. Everyone contends that the 2 ¾”  20ga round are more accurate than a 20ga 3” round. When the 2 ¾” round and the 3” round, share the same weight slug; they are both loaded to the same pressure.  WHY doses a Full Length 3″ Case always seems to kick more. The 3” case sealed off a 3″ chamber right away, assuring Constance pressure and velocity, each and every round. The truth is the less felt recoil is due to the loss of chamber pressure by firing a 2 3/4″ round in a longer 3″ chamber. It just makes the 2 ¾” slug round MORE shooter friendly. The less the felt recoil the more consistent the shooter. When you buy the correct length plastic case, for your maximum chamber length, “full velocity, temperature and slug alignment” issues are resolved.

Visit the NeoTec FLC slug pages for more 20 gauge slug rounds.

 

“Full bore size (non-sabot) Copper slugs & gun control”

The 355gr Copper slug is a premium bore size slug, and is on track to be largest diameter, heaviest, fastest, full expanding of all the Copper slugs in the industry. While retaining as much as 83% of its original weight when used on thin skin big game. The bore size 3″ 20ga  NeoTec FLC 355gr Copper slug has a unique felt recoil. Because of the weight of a bore size Copper slug, locking directly into the rifling. A clock wise twisting effect is applied to the gun as the slug accelerates from ZERO up to 54,000 rpm’s, when it’s fired thru a rifled barrel. The effect may go unnoticed by most shooters but the high left flyer toward 10:30 is often present to some degree; up and left, aproxamently 2″ in both directions even at 50yds.  Think about what happens when your shooting between 100 and 200 yards! That 10:30 flyer was caused by you relaxing/changing the grip on your left hand!

“THIS IS A MUST”  A firm two hand (GRIP) style gun control is required while shooting a slug gun off of a rest. GRIP the slug gun the same way you would hold onto a 460 Wby Mag, firing a 600gr bullet!  “Not because the recoil is that Sevier”. Because of the amount of TIME the slug spends in the barrel. While constantly trying to twist the slug gun clockwise, all the time the slug is in the barrel.  If a high left shot consistently frustrates you; it is because to light a grip was used on the gun, particularly with your left hand! 

 Note: Without a consistence amount of grip with both hands the amount of muzzle lift will also change the trajectory (point of impact) down range each and every shot.  Every shooter will hold the gun slightly different but ONLY when you become consistence in your GRIP, you can truly zero your slug gun. That’s why another person CANNOT truly zero someone else’s slug gun. Deer Rifles do the same thing but the projectiles are around 1/3 the weight, or less, of a slug, and the projectile spends less than 1/2 the time in the barrel. So the amount of the high left issue is greatly diminished.  See the video elsewhere on the TarHunt web site home page; on Zeroing a Bolt Action slug from a bench for more information.

Warning:

“NEVER  fire a 3” rounds in a 2 ¾” length  chamber”   Always remember; it will fit into the chamber and the action will close, even extract as long as it is not fired!   If fired in a 2 ¾” chamber; pressures will GO VERY HIGH because the 3” case does not have enough room to open fully. So the slug must literally TEAR off the end of the case before it can move down the barrel.

 SHIPPING:

All orders will be shipped directly from TarHunt until further notice. Ammunition or hulls shipped by ground service do not require a Haz-Mat fee. Any ammunition shipped by air service does require an Air Haz-Mat fee. Our sales associate can help you with any questions.

ATTENTION:  Residents of CA, CT, DE, DC, IL, KS, MA, NY, OH and WA, check your local laws before ordering ammunition products.  By placing an order, you certify you are of legal age and satisfy all federal, state and local legal/regulatory requirements prior to purchase.

WARNING: FOR FULLY RIFLED BARRELS ONLY. Keep out of the reach of children!   By using this product the USER assumes all responsibility for firing this round through any type of a fixed choke or choke tube, or a rifled tube period! TarHunt is NOT responsible for any and all damages to the firearm(s), person(s) firing the firearm, and or person(s) as bystanders due to any misuse.

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The following is not to be published–Just for reference right now.

The 20ga 2.2″  SCHRIFLE™ round using the “Hollow Slug with Truss” Copper Slug.  The only completely new slug round design in 80+ years”.    

Thank you for your interest in the TarHunt-Premier  20ga. 2.2” Schrifle™ 365gr Copper round, a bore size, non-sabot slug round. It was designed for use in its own “2.2” length chamber”. Very little has changed with this High Performance 20ga 2.2” Schrifle™ round and it will only be loaded with the original 365gr Copper slug. There is no conversion back to a shorter length chamber without changing the barrel itself. The 20ga 2.2” Schrifle™ 365gr round should also shoot reasonable well when fired in most 2 ¾” factory chamber rifled barrel only!  All orders will be shipped directly from TarHunt until further notice. TarHunt reserves the right to make adjustments to the weight of the projectile without notice.

Always call ahead before ordering MORE than 30 rounds. Don’t be disappointed and tie up your money in a back order!

The TarHunt 20ga 2.2″ Schrifle™ COPPER 365GR”- PREMIER SLUG

The Schrifle 365gr Copper slug was the original slug of the TarHunt 20ga slug series. It is stable thru all known 20 gauge twist rates.  The 20ga Schrifle™ 365gr Copper slug is one of our flattest shooting, excellent expansion with an average 83% weight retention when used on thin skin big game. It is at or near the same velocity as the other light weight sabot rounds; it is 26% bigger in diameter and a full 100+ grains heavier!  The Schrifle 365gr Copper slug  is on track to be largest diameter, heaviest, fastest, full expanding of all the copper slugs in the industry.   Because of the larger bore diameter and weighting (365 grs); it has a unique felt recoil when fired thru a rifled barrel . Upon entering a (1-24 twist rate) rifled barrel the slug must instantly spin clock wise at 54,000 rpm’s in millisecond’s. This generates a clock wise twisting effect on the gun. This generates a lot more torque than light a lite weight sabot slug. That is surrounded by a plastic sabot, that is slipping on the projectile to begin with! Making it necessary to use TWO handed gun control  when testing the Schrifle round off of a bench rest.

The current trajectory data for the 20ga 2.2” Schrifle 365gr Copper slug was generated with a 50yd, 2 1/2” high, dead center zero. You may be surprised by this heavy slug. Only a 2 1/2” (above and below) your point of aim for the first 150yds. Note: the trajectory curve will vary depending on how firm your holding the gun, with your left hand, when zeroing the slug from a bench rest.    NOTE:  The 365gr Schrifle slug will not be offered in the NeoTec FLC series.

“Bigger is Better”

For comparison purposes this photo shows a 1974 Kennedy 50 cent piece; next to a NeoTec Copper 365gr expanded slug that was fire into a ballistic gelatin block from between 45 and 50 yards away. That range duplicates about 80% of most deer taken with a slug gun. This NeoTec Copper 365gr expanded slug weights 302gr (an 83% average weight retention) and it expanded to just over the size of a half a dollar! An expanded slug like the one shown, @1800 fps, and spinning at 54,000 rpm’s (when fired thru a 1-24 twist rate barrel), and weighting over  300gr and acts like a hole saw !

 

THE TECHNOLOGY: Behind the Schrifle “Hollow Bullet  with Truss”.    

The 20ga 2.2″ Schrifle™ 365gr Copper slug design is an example of “out of the box thinking .”  The Schrifle™ slug uses the “Hollow Bullet with Truss” design. It utilizes a pressurized elastomer truss replaces the lead core normally used in all jacketed projectiles for over 140+ years. This new type of material is flexible enough to allow the side walls of the hollow copper slug,  to upset (expand) in diameter to match your barrels inside diameter.’

After firing and the slug upset (expands) to the bore has taken place by the bullet side walls, the pressurized elastomer truss remains strong enough to support the thin copper nose section from collapsing inward while the slug is being forced thru the barrel. The correct implementation of these two events, in the proper order, is critical to insure consistence round to round flight requirements and the elimination of wild flyers. The ideal full bore size slug for a 20ga bore rifled barrel is (1.125ths long x .620ths diameter) but made of solid Copper it would weigh over 1000gr. Now a slug can be made with the same physical size and shape but only weighting a total of 365grs. That’s a 83% reduction in weigh, resulting in velocities similar to the much smaller sabot slugs. The Schrifle bore size slug (.619ths) is a 26% increase in diameter over the (.451ths) sabot rounds. Upon impact, the pressurized elastomer truss,  aids in the initial amount of fracturing of the o-jive (the pointed part of the slug).

The “hollow bullet” design here shows the full cavity elastomer truss. This design helps generate real expansion of a 99.9% pure copper bullet that will expand and not just shoot thru or implode on impact projectile!

The “20ga “Hollow Bullet with Truss” retains 83% of the original weight and less than 1% of the flyers are slug related.  All other current sabot-discarding production rounds average 10% to 12% flyers, caused by the inconsistent fit to the bore size of your barrel, along with very low energy left down range.

Sometime, in the distant future, we will be hunting with “HOLLOW  Bullets” supported entirely by internal metal truss. This type of a projectile will be made on a 3-D metal  printers making even faster velocities possible!

Why is the case length so important?  What is your chamber length???

When a shorter case is fired in a longer chamber than is required, although completely safe, accuracy and performance will suffer. The TarHunt 2.2″ Schrifle 365gr Copper slug round was designed for its own 2.2″ long chamber and will not shoot well out of a factory 3″ 20ga chamber.    Note: 99% of all RIFLED BARRELS ever made, have 3″ CHAMBERS.

When a shorter case is fired in a longer chamber the entire slug must jump thru an un-supported area, while moving from the case mouth to the start of the rifling. Unguided with gas erupting all around the slug; because the shorter case CANNOT fully seal off the longer chamber from the start. The question then becomes, did the slug enter the rifling straight in line with the center of the bore or off center and become a flyer?  When a shorter case, such as the 2.2” Schrifle™ case is fired in a factory 3” chamber, you lose a different percentage of your chamber pressure every shot.  That doesn’t promote good accuracy, particularly past 100yds. The colder the temperature gets the more pressure you lose making it undesirable to hunt below 32 degrees, with that round. Both Accuracy and overall Performance will suffer.   When you buy the correct length plastic case for your chamber 98% of issues related to the chamber length are resolved. The 20ga 2.2” Schrifle™ round should shoot well when used in some 2 ¾” factory chamber rifled barrel only!

Visit the NeoTec FLC slug pages for more 20 gauge slug rounds.

SHIPPING: Ammunition or hulls shipped by ground service do not require a Haz-Mat fee. Any ammunition shipped by air service does require an Air Haz-Mat fee. Our sales associate can help you with any questions.

ATTENTION:  Residents of CA, CT, DE, DC, IL, KS, MA, NY, OH and WA, check your local laws before ordering ammunition products.  By placing an order, you certify you are of legal age and satisfy all federal, state and local legal/regulatory requirements prior to purchase.

NOTE: Buy using this product the shooter assumes all responsibility for firing this round through any type of a fixed choke or choke tube, period! TarHunt is NOT responsible for any and all damages to the firearm(s), person(s) firing the firearm, and or person(s) as bystanders due to any misuse.
WARNING: FOR FULLY RIFLED BARRELS ONLY. Keep out of the reach of children!

For your reference:  The 20ga Schrifle™ slug must fit the barrel exactly like a rifle bullet fits the bore of a center fire rifle barrel. The 20ga Schrifle™ round was designed to be fired thru a SAAMI spec rifled slug barrel. SAAMI specification for a rifled slug barrel ONLY allows for a .002ths maximum tolerance period! 

The Internal size of a SAAMI specification rifled slug barrel: On top of the rifling (bore diameter) is .609ths minimum and .611ths is the maximum diameters.  In the bottom of the rifling between the lands (grove diameter) is .618ths minimum and .620ths maximum diameter. The 20ga Schrifle Copper 365gr or the NeoTec FLC Copper 355gr projectile is .619ths in diameter, exactly in the middle of the (grove diameters) set at .618ths min. and 620ths maximin diameter.

WARNING”

“NEVER  fire a 3” rounds in a 2 ¾” length  chamber”   Always remember; it will fit into the chamber, the action will close, it will even extract as long as it is not fired!   If it is fired in a 2 ¾” chamber; pressures will GO VERY HIGH because the 3” case does not have enough room to fully OPEN.  So the slug must literally TEAR off the end of the case before it can move down the barrel!

 

 

 

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