Lutz Möller
Munition von der
Lutz Möller GmbH!
Lutz Möller GmbH!
.416 Barrett MSG, 56 mm long; 27,5 g heavy (424 Grains) BC 1,103 for 116
mm long .416" Barrett;
Zünder RWS; 1016 mm Barrel + Brake,
279 mm Twist length
| Pulver | Mass [g] | Density [%] |
Pressure [bar] | Burn rate [%] |
V0 [m/s] |
Remark | |
| highest | @ muzzle | ||||||
| Hogdon H870 | 13,20 | 97,9 | 4.492 | 688 | 100,0 | 1.025 | |
| Hogdon US869 | 13,70 | 98,5 | 4.494 | 689 | 100,0 | 1.025 | |
| Hogdon 50 BMG | 13,42 | 101,3 | 4.498 | 758 | 99,24 | 1.032 | rec. |
| Vihatvuori 24N41 | 13,36 | 96,1 | 4.495 | 711 | 99,99 | 1.024 | |
| Vihatvuori 20N29 | 14,40 | 102,5 | 4.444 | 698 | 100,0 | 1.017 | |
| Path | |||||||
| Range [m] | 0 | 50 | 100 | 150 | 200 | 250 | 300 |
| Speed [m/s] | 1.032 | 988 | 973 | 958 | 943 | 928 | 913 |
| Path [cm] | -5 | +0,9 | +4,2 | +5,0 | +3,1 | -1,6 | -9,1 |
| Wind drift [cm] | 0 | 0,2 | 0,8 | 1,8 | 3,0 | 4,6 | 6,6 |
| to 1200 m | |||||||
| Range[m] | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 |
| Speed [m/s] | 1.032 | 943 | 884 | 828 | 768 | 707 | 648 |
| Path [cm] | -5 | +97,5 | +156 | +164 | +115 | X | -197 |
| Wind drift [cm] | 0 | 3 | 12 | 28 | 51 | 82 | 127 |
drei .416 Barret MSG
Original Designs (not mine above) by Åke Nilsson and Pete Forras
The Case is calculated with 15,9 ml Volume and so are the Loads. Densities should be kept above 95% for best Results. Densities below 90% risk Detonation.
As always the Bullet is a Compromise. In this Case Pete Forest's Case is too large, too voluminous to allow for a LM-Class Bullet. The sectional has to be kept at Bay, to allow to load available Powders and burn them in reasonable length Barrel. The .50 BMG type Powders are the slowest general available Propellants. Those ask her already for a 1014 mm (40") an 450 MPa Pressure, or a good 20% above .50 BMG Pressures. So the Cartridge is at the Limit. At this Size it cannot be loaded better, nor can a better Bullet than the .416 Barrett MSG be fired.
Estimated Drag, BC and Gyroscopic Stability at Standard ICAO Sea Level Conditions
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Möller 416 Barrett MSG Cal. 10.570 mm, 27.5 g
Ballistic Coefficient Calculated for Drag Function G1
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Velocity Drag Coefficient RPM and Stability maximum Twist-
Factor of Form at a Twistlength lenght
and B.C.1 of 26,5 Cal. for s = 1.3
Mach m/s fps Cw i B.C.1 RPM s Cal. in. mm
-----------------------------------------------------------------------------------
0,441 150 492 0,085 0,417 0,839 32143 1,00 23,2 9,7 246
0,514 175 574 0,084 0,422 0,829 37500 0,99 23,1 9,6 244
0,588 200 656 0,084 0,421 0,831 42857 0,97 22,9 9,5 242
0,661 225 738 0,085 0,410 0,853 48214 0,94 22,5 9,4 238
0,735 250 820 0,086 0,382 0,916 53571 0,90 22,1 9,2 233
0,808 275 902 0,086 0,337 1,038 58929 0,84 21,4 8,9 226
0,882 300 984 0,091 0,285 1,226 64286 0,75 20,1 8,3 212
0,955 325 1066 0,129 0,315 1,111 69643 0,55 17,2 7,1 181
1,000 340 1116 0,248 0,523 0,669 72920 0,68 19,2 8,0 203
1,102 375 1230 0,249 0,429 0,816 80357 0,73 19,8 8,2 209
1,175 400 1312 0,284 0,458 0,765 85714 0,81 20,9 8,7 221
1,763 600 1969 0,234 0,379 0,923 128571 1,17 25,2 10,5 266
2,351 800 2625 0,192 0,353 0,993 171429 1,31 26,6 11,1 281
2,939 1000 3281 0,161 0,317 1,103 214286 1,38 27,3 11,4 289
3,526 1200 3937 0,138 0,278 1,260 257143 1,43 27,8 11,6 294
4,114 1400 4593 0,120 0,244 1,436 300000 1,46 28,1 11,7 297
4,702 1600 5249 0,106 0,216 1,618 342857 1,49 28,4 11,8 300
5,290 1800 5906 0,096 0,194 1,801 385714 1,51 28,6 11,9 302
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The Barrel needs an Exhaust to vent the 76 MPa pressures Powder combustion gasses sideways, to leave the Bullet undisturbed. The nice Side effect is, this Exhaust brakes the Recoil, as the retarded Gases pull the Barrel forward, after the Acceleration pushes it backwards. Be sure to use good Ear protection, when firing with this Exhaust and those Powder masses! Do not ruin Your ears with 200 Pa Blasts! Every singe Event counts! The Exhaust may be encapsuled in a Liter closed Volume, to cut the Sound pressure.
Hallo Anders,
with 1016 mm Barrel Your Rifle will be a Monster, a potent one! Look at the Wind drift. You halve the Standard .338 LM Lockbase Loads Wind drift, or in other Words, double the Performance. With the daunting Speed, from such a Big Banger, you shot flatter and further than most.
The Twist is with 279 mm moderate. NO longer Bullets are possible from the Powders. They constitute the Design limits. The Rest follows consequential. So there is nothing left to discuss. Take it or leave it.
Lutz
Lutz,
I sent the barrel manufacturer an e-mail. If they have not started to make the barrel yet. They can make me a couple of 40" tubes. If so, I might have the possibility to also change the twist to maybe 1:11" (1:279,4 mm) if this is more ideal for the bullet.
LM: Yes!
I have not got an answer from them yet.
We had to take the actions trough
Lilja Barrels, because they have the needed license to deal with export
of weapon parts. They charged I think 175$ for this job. The action came for
2300$ + a 95$ 30 MoA rail. I cant remember what we payed in shipping, but on
top of all this we must pay a 25% tax. No special import tax for this Kind
of parts in to Norway. But with the US-Dollar so low combined with a strong
Norwegian Kr it didn't turn out so bad. They call it a "high-end" benchrest
action.
Trigger is extra. Will get a
Jewell.
Will this muzzle brake this one derect enough of the
gases backwards?
LM: Yes!
I always thought that a clamshell-type (ugly, I know) with large ports
directed backwards would be the most efficient,
but you seem to know a thing or two about these things, and the design makes
it very easy to make, so why not.
Anders, 14th June 2008
.416 Barrett MSG Pressure 900 m/s, Click to enlarge
.416 Barrett MSG Pressure iso 900 m/s, Click to enlarge
.416 Barrett MSG Velocity 900 m/s, Click to enlarge
.416 Barrett MSG dynamic Velocity iso 900 m/s, Click to enlarge
.416 Barrett MSG dynamic Pressure 900 m/s, Click to enlarge
.416 Barrett MSG dynamic Pressure iso 900 m/s, Click to enlarge
Lutz Möller, Sunday, 15th June 2008
Hi Lutz,
thanks for good info I’ll save
this page with very interesting pictures.
This ”short “Barrett-version” is very similar with my short model from
1997-1998 but with special slower burning powder.
You can get Vo 1150 ms and little + over that with a 350gr bullet in the
full-length case from a 36” barrel. Twist: 1- (11 -12 ) Both pitches are OK.
Best’s Åke, Montag, 16. Juni 2008 09:19
Lutz,
Ich habe mal Ihre Web Seiten wiederentdeckt und würde gerne mal Ihre
.416" Barrett
Geschosse ausprobieren.
LM: Die gibt es nur als Sonderwunsch!
Dabei sind mir aber einige Unkorrektheiten aufgefallen. Zunaechst einmal Barrett hat zwei t’s am Ende. Die Barrett muzzle brake Zeichnung is nicht z.Zt. auf den Barrett Gewehren. Ich habe mal eine solche brake gesehen, was aber nicht auf einer Barrett.
LM: Das ist auch auch meine
Rückstoßbremse für die
.416 Barrett!
Die .416 cartridge Zeichnung hat die richtige Form aber die Laengen stimmen
nicht.
LM: Die sind nach Ake`s Wunsch und Reibahle. Eine feststehende Norm gibt es nicht! Jeder macht, was er will!
Die throat Zeichnung sieht O. K. aus.
Was kosten mich einige Ihrer .416 MSG?
LM: Siehe Keine Werbemuster und Mindermengen!
Tom Knorr, Freitag, 22. August 2008 16:26
Hi Lutz!
Got the bullets yesterday.
WOW! They look excellent! The shape and finish is great. They look like
business.
Thank you. Mvh Anders Hopen, Norge
Hallo Anders,
the Captain must have Circlet Spitzbergen on the Way to You to take so long
time.
Please keep me updated (Words, Pictures)
Lutz, Mittwoch, 10. September 2008 08:26
.416 Barret MSG | .416 Barret Patrone mit Barretgeschoß | A-Max .50 BMG Patrone | 14,5x114 Degtjarev Hülse
Drei .416 Barret MSG vor großen Patronen
Lutz Möller, lm@lutz-moeller-jagd.de
