.375 Swiss P
{{Short description|Rifle cartridge}}
{{Infobox firearm cartridge
| name = .375 Swiss P
| image =
| image_size =
| caption =
| origin = Switzerland
| type = Centerfire rifle
| service =
| used_by =
| wars =
| designer = RUAG Ammotec/Swiss P[https://www.swiss-p.com/en/ SWISS P Ammunition for Professionals]
| design_date = c. 2018
| manufacturer = RUAG Ammotec
| production_date = 2021–present
| number =
| variants =
| is_SI_specs = yes
| parent = .500 Jeffery
.338 Lapua Magnum
| case_type = Rebated, bottleneck
| bullet = 9.55
| land = 9.30
| neck = 10.30
| shoulder = 14.80
| base = 15.73
| rim_dia = 14.93
| rim_thick = 1.52
| case_length = 69.85
| length = 93.50
| case_capacity =
| rifling = 304.80 (1 in 12")
| max_pressure = 420.00
| pressure_method = CIP
| max_pressure2 =
| pressure_method2 =
| primer =
| is_SI_ballistics = yes
| bw1 = 350
| btype1 = FMJ
| vel1 = 865
| en1 = 8492
| bw2 =
| btype2 =
| vel2 =
| en2 =
| bw3 =
| btype3 =
| vel3 =
| en3 =
| bw4 =
| btype4 =
| vel4 =
| en4 =
| bw5 =
| btype5 =
| vel5 =
| en5 =
| test_barrel_length = 762 mm (30 in)
| balsrc =
}}
The .375 Swiss P or 9.5×70mmRB, designated 375 Swiss P by the C.I.P., is a rebated rim, bottleneck, centerfire rifle cartridge. It was developed during the late 2010s as a high-powered, long-range cartridge for military snipers and the law enforcement sector.{{Cite web|last=C.I.P.|date=2018-05-16|title=C.I.P. TDCC sheet 375 SWISS P|url=https://bobp.cip-bobp.org/uploads/tdcc/tab-i/375-swiss-p-180302-en.pdf|access-date=2021-05-02|website=cip-bobp.org|language=en}} The loaded cartridge is {{convert|14.93|mm|abbr=on}} in diameter (rim) and {{convert|93.5|mm|abbr=on}} long. It can penetrate better-than-standard military body armor and has a maximum supersonic range of about {{convert|1600|m|yd|-1}} with C.I.P. conform FMJ factory ammunition at sea level conditions. Muzzle velocity is dependent on barrel length, seating depth, and powder charge, and varies from {{convert|860|to|870|m/s|lk=in|abbr=on}} for commercial loads with {{convert|22.7|g|gr|adj=on}} bullets, which corresponds to about {{convert|8500|J|ftlbf|abbr=on}} of muzzle energy.
Background
The .375 Swiss P is advertised by RUAG Ammotec as a cartridge that "fills the gap in ballistic performance between the .338 Lapua Magnum (8.6×70mm) and the .50 Browning Machine Gun (12.7×99mm)". Especially in regard to down-range kinetic energy, this performance gap is significant. As such it was designed to be relatively easily (re)chambered by just a rebarreling as a performance upgrade in sturdily built rifles originally designed around the .338 Lapua Magnum that also are encountered in .338 Norma Magnum and .300 Norma Magnum chamberings.
The .375 Swiss P shares its bolt face, rim diameter and overall length and maximum operating pressure with the .338 Lapua Magnum chambering. It features a larger {{convert|15.73|mm|abbr=on}} base diameter as found in the .500 Jeffery. This results in a (P1 - R1 = {{convert|0.80|mm|abbr=on}}) rebated rim. Rebated rim cartridges have a rim that is significantly smaller in diameter than the base of the case, serving only for extraction. Functionally the same as a rimless case, a rebated rim allows a gun to be easily converted to fire a larger-than-normal case capacity cartridge, as most of a gun's action (loading/extraction mechanism) does not need to be altered as long as the rim size is preserved.{{cite book|last=Walker|first=Robert E.|title=Cartridges and Firearm Identification|url=https://books.google.com/books?id=THQ1iG8fSG8C&pg=PT100|date=21 March 2013|publisher=CRC Press|isbn=978-1-4665-8881-3|pages=100–101}}{{Cite web|last=Palamaro|first=Franco|date=2021-03-30|title=Brand new and already tested by us: .375 Swiss P, the new sniper caliber from RUAG Ammotec|url=https://www.all4shooters.com/en/shooting/ammunition/ruag-introduces-the-new-375-swiss-p-professional-sniper-caliber/|access-date=2021-05-02|website=all4shooters.com|language=en}}
Currently, the PGM Mini Hecate II, Voere with the X3, X4 and X5 and Unique Alpine with the TPG-3A4 (FN Ballista) offer the new chambering, and the TTS Xceed is also to be available in .375 Swiss P. At its introduction in 2021 .375 Swiss P ammunition is only available for military/law enforcement users.
Performance
RUAG Ammotec claims that the .375 Swiss P FMJ low drag projectile load offers performance superior to their .338 Lapua Magnum offerings, exhibiting additional supersonic range and reduced wind drift, while delivering greater kinetic energy down range.{{Cite web|last=SWISS P|date=2021-03-29|title=The new .375 SWISS P – Your tactical advantage|url=https://www.swiss-p.com/en/375_Swiss_P|access-date=2021-05-02|website= swiss-p.com|language=en}}{{Cite web|last=|first=|date=2021-03-25|title=RUAG Ammotec: .375 SWISS P – improved performance made easy!|url=https://www.edrmagazine.eu/ruag-ammotec-375-swiss-p-improved-performance-made-easy|access-date=2021-05-07|website=edrmagazine.eu|language=en}}
The manufacturer states .375 Swiss P ball is loaded with a double base smokeless powder and the projectile has a 0.8014 (ICAO) G1 ballistic coefficient under International Standard Atmosphere sea level conditions (air density ρ = 1.225 kg/m3).{{Cite web|last=SWISS P|date=2021-03-29|title=.375 SWISS P Ball |url=https://www.swiss-p.com/en/Products/375-SWISS-P-Ball|access-date=2021-05-02|website= swiss-p.com|language=en}}
With an AP-type projectile the .375 Swiss P is claimed to be able to penetrate the body armour of German Protection Level IV from a distance at ranges up to {{convert|600|m|yd|-1}}. However, as of May 2021 .375 Swiss P AP loads are not commercially available.
See also
Notes
{{notelist}}
References
{{Reflist|30em}}
External links
- [https://bobp.cip-bobp.org/uploads/tdcc/tab-i/375-swiss-p-180302-en.pdf C.I.P. TDCC sheet 375 SWISS P]
- [https://www.swiss-p.com/en/Products/375-SWISS-P-Ball .375 SWISS P Ball]
- [https://www.swiss-p.com/images/content/products/Produktegrafiken/375SWISSP/8510_375_SWISS_P_Ball_22.7_g_350_gr_EN.pdf .375 SWISS P Ball Fact Sheet]
- [https://www.swiss-p.com/images/content/Downloads/Brochures/210311_Brochure_375_web.pdf .375 SWISS P Fact Sheet Brochure]
{{Rebated rim cartridges}}
Category:Pistol and rifle cartridges