Can You Shoot Blackhorn 209 With a Factory Cva Breech Plug
Due north AMERICAN MUZZLELOADER HUNTING
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Tin can Blackhorn 209 Exist Ignited With Magnum Large Rifle Primers?
The custom breech plug shown in the above photo was made to fit the Thompson/Center Arms driblet-activeness Omega rifle models. The standard breech plug that the rifle comes equipped with has been designed for use with No. 209 primers - and does an fantabulous chore. In fact, the factory breech plug has proven to exist one of the nearly compatible breech plugs for consequent and spontaneous ignition withBlackhorn 209. Fortunately, most all of the breech plugs now being installed in all current production No. 209 primer in-line ignition rifles are now pretty much " Blackhorn 209 Compatible" ...or a rifle manufacture may offering an optional breech plug for their rifles that DOES insure proper ignition of the powder. The plug shown hither has been chambered to accept a very shortened 6mm Remington brass case...which can be primed with a Magnum Large Burglarize Primer. Due north AMERICAN MUZZLELOADER HUNTING acquired the custom fabricated breech plug shown in social club to decide if such an arrangement can provide enough fire to charges of Blackhorn 209 to requite 100% ignition 100% of the time.
I originally planned to bear this testing near four years ago, merely just never got around to it - since my one and only .50 caliber Omega rifle was in apply by my brother'south grandson, well-nigh two,000 miles away. The male child had taken a great buck with it, and I merely did non experience like trying to get it back. My goal back so was to see how close I could get to duplicating the functioning of the .50 caliber Ultimate Firearms customBP Xpress burglarize - which was beingness built on the Remington Model 700 center-burn burglarize action. The company was challenge 2,400 f.p.s. velocities, loading and shooting four of the and then-called 50-grain Triple Seven Pellets behind a saboted 250-grain bullet. My feelings were then, and still are today, that if an ignition system could effectively ignite and burn truly magnum charges of Blackhorn 209...some of the "magnum" class mass produced rifles on the market could indistinguishable, or at least come close to duplicating, the performance of the custom muzzleloader - which was selling for $ii,500...and up. I kind of shelved that projection - until Remington unvelied its "new" Ultimate Muzzleloader, built on the Model 700 rifle action, at the NRA Show in Indianapolis, IN this by April (2014). The rifle is simply the Ultimate Firearms BP Xpress - merely with Remngton's name on information technology...and carrying a bit friendlier $1,295 price tag. Singing from the same song book, Remington is now chortling "ii,400+ f.p.s." velocities besides.
| Namlhunt.com host Toby Bridges at the bench with the .l T/C Omega borrowed from Blackhorn 209. | So, I dug around in all the boxes of "muzzleloader goodies" filling my garage until I found the breech plug shown in the above photo. I shared with the good folks at Blackhorn 209 my plans to meet if I could reach 100% spontaneous ignition of Blackhorn 209 powder - using the shortened 6mm Remington case "primer holders" , primed with CCI Magnum Large Burglarize Primers. |
| The Magnum Large Rifle Primer in the shortened contumely instance at left sits approximately .003"-.004" deeper than the face of the case head. The case at right has been faced off to bring the primer flush. | This side view of the shortened 6mm Remington cases that now serve every bit a primer carrier for the custom Omega breech plug shows how the instance head on the right has been thinned down to bring the primer closer to the firing pin. |
When the factory breech plug was pulled and the custom chambered breech plug installed, I immediately discovered a problem that had non even been considered. When a big burglarize primer is seated into the primer pocket of a centre-fire rifle cartridge case, the face of that primer typically sets .003" to .004" deeper than the face of the cartridge head. The firing pin of the Omega just protrudes .006" to .007" from the confront of the reciever - and the strike of the firing pin was so calorie-free that, generally, information technology would non fire the primer seated in the shortened 6mm Remington cases. So...it was back to the drawing board. The problem was resolved with some new shortened cases that were trimmed to be correct at .003" longer than the previously shortened cases - so approximately .003" of the instance head was faced off - bringing the surface of the seated Magnum Large Burglarize Primers pretty much level with the new face up of the instance caput. The Omegathen detonated the primers with every fall of the hammer.
| Problem 2 then immediately surfaced. During the beginning range session with the borrowed rifle, brass primer carriers and Magnum Large Rifle Primers, out of the fifteen shots fired there were 5 very noticeable hang fires or hesitations. The custom breech plug had been fitted with a replaceable vent liner, which featured a .030" diameter flash hole. So...it was back to the garage to dig through some more boxes to look for a stash of vent liners left over from testing the Savage bolt-activity Model 10ML II muzzleloaders during the mid 2000's. It was apparent that more fire needed to reach the powder charge to insure positive and cinch ignition of the Blackhorn 209 charges. The two I came upwards with are shown at correct - i drilled with three .030" holes - and 1 with a single .035" bore pigsty. | In an endeavour to get more burn down to the Blackhorn 209 charges, several different vent liners were installed. |
First, the vent liner with the .035" flash pigsty was threaded into the deep recess at the front end of the breech plug. During my earliest testing of Blackhorn 209, I found that those breech plugs with a .033" to .036" flash pigsty tended to produce the best ignition - and even then it required the employ of a hot No. 209 primer, such as the CCI 209M or the Federal 209A. Still, even with the .035" drilled vent liner, when going for three consecutive three-shot 100 one thousand groups...I experienced iv accuracy robbing hesitations during ignition. The best of those groups went two one/4-inches center-to-eye. The worst of the groups experienced two hang fires, and the spread was nearly iii ane/2 inches.
The three-hole vent liner didn't fare a whole lot amend. With each of the 3 groups shot, there was a hang fire. The all-time group is shown below left - measuring right at 1 3/iv inches center-to-center. The other 2 both exceeded 2 ane/2 inches across.
The custom plug was then pulled and replaced with the mill No. 209 primer breech plug. I ended the Memorial 24-hour interval weekend session with 3 groups, shooting the same powder accuse and saboted bullet, but relying on theFederal 209A shot-shell primer for ignition. The worst of the three still measured right at a very adequate 1.1 inches center-to-center. The best, shown below right, measured just .503 inch from what can exist determined center-to-middle.
| All-time Group Shot With three-Hole Vent Liner - one 3/4 Inches | Best Grouping Shot With Factory Breech Plug - .503-Inch |
| | I will concede that Remington's apply of the patented Ultimate Firearms breechplug, cutaway shown at left, is a better design that likely does better capture and utilize the fire from a Magnum Big Rifle Primer. That center extension brings the wink hole all the way back to the primer...while at the same time fills up the "chamber space" - both of which should consequence in a hotter and more than concentrated amount of burn down. But, will it put more than fire into the pulverization charge than a magnum forcefulness No. 209 Shot-Beat out Primer? |
Personally, I say "No!" With that said, back during the mid 2000's, when Ultimate Firearms was loudly claiming that their ignition organisation, utilizing Magnum Large Rifle Primers, would fully consume four of the 50-grain Triple Seven Pellets, I had my doubts and so besides. At that time, I was shooting and hunting with two custom built .50 caliber very mod in-line rifles. One was built on a HOWA center-burn rifle action, the other built on a SAKO center-burn burglarize action. Both were fitted with breechplugs chambered for stainless steel ignition modules which were primed with No. 209 primers. Ironically, those modules were shaped very much like the middle extension of the Ultimate Firearms/Remington breech plug - only the forward tapered tip fit up against the forwards tapered portion of the chamber...to direct fire into the flash hole. See photo below right, which shows two variations of the modules for No. 209 shot-shell primers.
| When a No. 209 primer was fired into an unloaded rifle in the dark, fire from the primer would shoot 4 or more feet out the muzzle. Even so, neither of those rifles could fully consume 4 of the Tripe Seven Pellets. During one late evening test, I repeatedly loaded four pellet loads behind a | NORTH AMERICAN MUZZLELOADER HUNTING host Toby Bridges has owned several custom .50 bolt-action in-line muzzleloaders that utilized the No. 209 primer carrier shown at right. The carrier at left was used by Fell Arms for their original Model 10ML in-line rifle. |
The one thing I learned while conducting the examination with the custom breech plug and shortened 6mm Remington cases is that the Magnum Large Rifle Primers are a lot dirtier than I suspected. After just 3 or iv primers, the insides of the brass primer carriers were heavily coated with primer fouling. That would explain why quite a few owners of the Ultimate Firearms BP Xpress rifles complained virtually how desperately their breech plugs would soot up later just a few rounds. One BP Xpress rifle owner I know got rid of his high dollar custom rifle and went to ane of the Knight commodities-activeness Mountaineer models - for two reasons. One, he could not get the velocity and accurateness claimed past Ultimate Firearms...and his other reason was that he found the breeching organisation a pain in the barrel to make clean and go on clean. Right now, it seems as if Remington is running with the same previous hype put out past Ultimate Firearms. My feeling is that when Remington begins to become more and more rifles out in the hands of modern muzzleloading hunters, we'll begin to hear more about the existent world ballistics of the Ultimate Muzzleloader. My feelings are that nosotros'll likewise hear a lot more about problems with getting proper ignition with Blackhorn 209, using their patented breech plug, brass primer carriers and Magnum Large Rifle Primers. - Toby Bridges, North AMERICAN MUZZLELOADER HUNTING
Published v-27-14
What Will It Take To Ignite Blackhorn 209 With Magnum Big Rifle Primers?
Dorsum when the photograph directly in a higher place was taken in 2009, these two rifles were my "master shooters" . The Knight Rifles .50 caliber Long Range Hunter rifle was my No. one examination rifle for Northward AMERICAN MUZZLELOADER HUNTING...and the Pedersoli .45/70 Govt. Long Range Model of the 1874 Sharps rifle was the center-burn cartridge rifle I shot more than any other. Another affair these two rifles also had in common was that my favorite loads for each were fabricated upwardly with charges of Blackhorn 209. My "Go To" load for the Long Range Hunter was a volume measured 110-grain accuse of the pulverization behind the Harvester Muzzleloading saboted 300-grainScorpion PT Gilded bullet, and my favored load for the large Sharps .45/70 was a weighed 45-grain charge of Blackhorn 209 behind a 405-grain hard cast lead bullet. (That weighed amount of Blackhorn 209 is the equivalent of right at 63 grains by volume.)
The 2 No. 209 magnum strength primers virtually e'er used for ignition with the Knight muzzleloader, when the shooting was serious, was either the Federal 209A or the CCI 209M. However, the .45/70 Sharps always gave me 100% spontaneous ignition 100% of the time when using just standardCCI Large Rifle Primers. So, why did the milder standard primers work then well in this early fashion cartridge rifle, while the Magnum Large Rifle Primers failed to give spontaneous ignition 100% of the time with the custom breech plug in the T/C Omega rifle?
It boils downwards to the fact that the standard Large Burglarize Primer of the .45/70 cartridge is practically sitting directly against the rear of the powder accuse. The instant that primer detonates, the majority of the fire is immediately into the powder. That massive corporeality of burn down contacting the powder charge all at one time creates instantaneous ignition.
At present, go support and take a look at the shortened 6mm Remington instance used as a primer carrier. When a Magnum Large Burglarize Primer is detonated by the firing pin, the resulting fire must offset fill the inside cavity of the shortened case, so the fire will be forced through the flashhole and into the powder. The distance from the primer to the flashhole is nearly 3/4", then the fire flows through the .375" long flash pigsty of the vent liner. When using the custom breech plug and shortened 6mm Remington cases for ignition, the fire from a Magnum Large Rifle Primer must travel more than an inch earlier reaching the accuse of Blackhorn 209. Weakening that burn down fifty-fifty more than is how it is decompresses when filling all that space inside the shortened cartridge case.
| Locked in for some other shot - Will the current trend for greater velocity...greater free energy levels...and greater range truly benefit today'due south muzzleloading hunter...or simply create more recoil and higher shooting costs? | The internal extension or stem around which the Remington/Ultimate Firearms primer carrier fits fills that internal void, maintaining better compression of the burn down from the primer. However, the fire from the primer must still travel an inch or so before reaching the powder charge. |
In no way do I desire to encourage anyone to beginning shooting 140- to 150-grain charges of Blackhorn 209 in just any No. 209 primer ignition rifle, or for that affair, four 50-grain Triple Vii Pellet charges. I know for a fact that loads made up with only iii l-grain Triple Seven Pellets behind a saboted 300-grain bullet have pushed internal barrel pressures to around 35,000 p.south.i. - into the realm of smokeless powder loads. The 200-grain four pellet charge being promoted by Remington/Ultimate Firearms could be pushing pressures above twoscore,000 p.south.i. (Due largely to the beginning three pellets also pushing an unburnt fourth pellet, in add-on to the bullet, down the diameter.)
I affair is for sure, modern muzzleloading is one time again going through another evolutionary spurt. I approximate whether or not muzzleloader operation moves up another notch will depend on whether in that location actually is annihilation to the Remington/Ultimate Firearms performance claims and promotional hype. - Toby Bridges, N AMERICAN MUZZLELOADER HUNTING
Source: https://namlhunt.com/blackhorn209-12.html
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