{{For|the surname|Jalonen (surname)}} '''Jalonen''' was a Finnish firearms manufacturer in Sastamala from 1990<ref name=":0">{{Cite web |last=Suuronen |first=Pekka |date=2007-11-22 |title=Suomalaisia aseita (1) - P.S. (Pekka Suuronen) |url=https://eralehti.fi/ps-pekkasuuronen/2007/11/23/suomalaisia-aseita-1/ |access-date=2023-05-06 |language=fi}}</ref> to 2016.<ref name=":7">{{Cite web |title=Asesepät tähtäävät kasvuun – Leader Joutsenten reitti |url=https://joutsentenreitti.fi/asesepat-tahtaavat-kasvuun/ |access-date=2023-05-06 |language=fi |archive-date=2023-05-07 |archive-url=https://web.archive.org/web/20230507150106/https://joutsentenreitti.fi/asesepat-tahtaavat-kasvuun/ |url-status=dead }}</ref> The company is known for making silhouette pistols and rifles for hunting og sport shooting based on their own series of action designs called "JJ-aktio".<ref name=":0" /><ref>{{Cite web |date=2013-11-26 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=2 |archive-url=https://web.archive.org/web/20131126023451/http://jalonen.fi/index.php?mid=2 |access-date=2023-05-06|archive-date=2013-11-26 }}</ref> The firearms were built to order, and customers could choose from a selection of chamberings.<ref name=":0" />
== History == In 1990, Jyri Jalonen started producing firearms.<ref name=":0"/> In the early 2000s it became difficult to export receivers-only from Finland, and Jalonen therefore switched to delivering barreled actions by combining their action with locally produced hunting barrels from Mäkinen for a few years until Mäkinen retired. Stocks and other accessories were ordered from other manufacturers. By 2007, the company had produced approximately thousand firearms, and was in the process of calming down its activity.<ref name=":0" />
In 2016 Juri Jalonen retired, and the manufacturing plant was sold to Ensio Firearms.<ref name=":7"/> The production of silhouette pistols then gradually ceased, and Ensio switched to producing rifles based on a further development of the JJ action as well as constructing new models of modern rifles.
== Models == Jalonen's actions were lapped and made to tight tolerances,<ref>{{Cite web |date=2003-04-07 |title=- J J m a i n - |url=http://personal.inet.fi/yritys/jyri.jalonen/maine.html |archive-url=https://web.archive.org/web/20030407160914/http://personal.inet.fi/yritys/jyri.jalonen/maine.html |access-date=2023-05-07|archive-date=2003-04-07 }}</ref> and can therefore be heavy to cycle. The actions have had a reputation for having a good finish and being very straight, and have been used for benchrest shooting, often in combination with aftermarket barrels.
The triggers are proprietary, and only Jalonen's triggers can be used on their actions. These have been made in several different versions for hunting and competition either with or without a manual safety. Several of the triggers have an adjustable distance.
The extractor is placed in front of the breechface, and must be ground if a close fit between the barrel and breech is desired. The extractor is sharp from the factory and can cause chips from the cases during cycling. Like the TAP-375, the angle and location of the lever arm (that is perpendicular to the axis of the bolt sleeve) means that a deep cut for the lever arm in the stock is necessary.
=== Overview === In the following table, the mass is given for the complete action with bolt, trigger, trigger guard and magazine as shown on the manufacturer's website.<ref name=":5"/> All the actions have a 90 degree bolt opening. List of mechanisms:<ref name=":6">{{Cite web |date=2016-08-05 |title=Wayback Machine |url=http://jalonen.fi/media/JJ-actions.pdf |archive-url=https://web.archive.org/web/20160805150044/http://jalonen.fi/media/JJ-actions.pdf |access-date=2023-05-07|archive-date=2016-08-05 }}</ref> {| class="sortable wikitable" style="text-align: center;" !Model !Barrel threads !Mass !⌀ bolt !Length !Feed !Kamringer |- |JJ-900<ref>{{Cite web |date=2001-07-07 |title=J J - 9 0 0 |url=http://personal.inet.fi/yritys/jyri.jalonen/jj900e.html |archive-url=https://web.archive.org/web/20010707102544/http://personal.inet.fi/yritys/jyri.jalonen/jj900e.html |access-date=2023-05-07|archive-date=2001-07-07 }}</ref> |M25.4×1.588 mm |1500 g |17 mm |233 mm |108 mm |6.5×55 mm, .30-06, 7 mm Rem Mag, .338 Win Mag, and more |- |JJ-90<ref>{{Cite web |date=2001-11-29 |title=J J - 90 |url=http://personal.inet.fi/yritys/jyri.jalonen/jj90e.html |archive-url=https://web.archive.org/web/20011129203934/http://personal.inet.fi/yritys/jyri.jalonen/jj90e.html |access-date=2023-05-07|archive-date=2001-11-29 }}</ref> |M25.4×1.588 mm |1500 g |17 mm |233 mm |108 mm |6.5×55 mm, .30-06, 7 mm Rem Mag, .338 Win Mag, and more |- |JJ-91<ref>{{Cite web |date=2000-05-11 |title=J J - 91 |url=http://personal.inet.fi/yritys/jyri.jalonen/jj91e.html |archive-url=https://web.archive.org/web/20000511173054/http://personal.inet.fi/yritys/jyri.jalonen/jj91e.html |access-date=2023-05-07|archive-date=2000-05-11 }}</ref> |M24×1.5 mm<ref name=":2">{{Cite web |title=Tabelle Zylinderverschlüsse |url=https://www.silhouetten.org/Technik/tab_zyl.htm |access-date=2023-05-07}}</ref> |1200 g |15 mm |194 mm |77 mm |.222 Rem, .223 Rem, 6 mm PPC, 7.62×39 mm, and more |- |JJ-910<ref>{{Cite web |date=2001-07-07 |title=J J - 910 |url=http://personal.inet.fi/yritys/jyri.jalonen/jj910e.html |archive-url=https://web.archive.org/web/20010707102508/http://personal.inet.fi/yritys/jyri.jalonen/jj910e.html |access-date=2023-05-07|archive-date=2001-07-07 }}</ref> |M24×1.5 mm |1100 g |15 mm |194 mm |77 mm |.222 Rem, .223 Rem, 6 mm PPC, 7.62×39 mm, and more |- |JJ-92<ref>{{Cite web |date=2001-07-07 |title=J J 9 2 |url=http://personal.inet.fi/yritys/jyri.jalonen/jj92e.html |archive-url=https://web.archive.org/web/20010707102705/http://personal.inet.fi/yritys/jyri.jalonen/jj92e.html |access-date=2023-05-07|archive-date=2001-07-07 }}</ref> |M25.4×1.588 mm |1550 g |17 mm |233 mm |85 mm |6 mm PPC, 6 mm BR, .308 Win, and more |- |JJ-92A<ref>{{Cite web |date=2001-07-07 |title=J J 9 2 A |url=http://personal.inet.fi/yritys/jyri.jalonen/jj92Ae.html |archive-url=https://web.archive.org/web/20010707102605/http://personal.inet.fi/yritys/jyri.jalonen/jj92Ae.html |access-date=2023-05-07|archive-date=2001-07-07 }}</ref> |M27×1.5 mm,<ref name=":2" /> M27×1.411 mm<ref name="Jyri Jalonen">{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=14 |archive-url=https://web.archive.org/web/20160805170612/http://jalonen.fi/index.php?mid=4&pid=14 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref> |900 g |17 mm |239 mm |91 mm |6 mm PPC, 6 mm BR, 7 mm BR, .30 BR and more |- |JJ-93<ref name="jalonen.fi">{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=15 |archive-url=https://web.archive.org/web/20160805212021/http://jalonen.fi/index.php?mid=4&pid=15 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref> |M25.4×1.588 mm |1450 g |17 mm |215 mm |97 mm |.308 Win |- |JJ-930<ref name=":3">{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=16 |archive-url=https://web.archive.org/web/20160805211901/http://jalonen.fi/index.php?mid=4&pid=16 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref> |M25.4×1.588 mm |1300 g |17 mm |215 mm |97 mm |.308 Win, .243 Win, .22-250 Rem |- |JJ-50<ref name=":4">{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=17 |archive-url=https://web.archive.org/web/20160805230915/http://jalonen.fi/index.php?mid=4&pid=17 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref> |M63×2 mm |3200 g | |300 mm |158 mm |12.7×99 mm |}
; JJ-90: Magazine action in blued steel.<ref name=":6"/><ref name=":5"/> 2-position safety.<ref>{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=9 |archive-url=https://web.archive.org/web/20160805230907/http://jalonen.fi/index.php?mid=4&pid=9 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref>
; JJ-900: Single-shot action in blued steel.<ref name=":6"/><ref name=":5">{{Cite web |date=2003-02-04 |title=- J J a c t i o n s - |url=http://personal.inet.fi/yritys/jyri.jalonen/actions.html |archive-url=https://web.archive.org/web/20030204100320/http://personal.inet.fi/yritys/jyri.jalonen/actions.html |access-date=2023-05-07|archive-date=2003-02-04 }}</ref> 2-position safety.<ref>{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=10 |archive-url=https://web.archive.org/web/20160805213752/http://jalonen.fi/index.php?mid=4&pid=10 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref>
; JJ-91: Magazine action in blued steel.<ref name=":6"/><ref name=":5"/> Trigger pull weight 700-1500 grams.<ref>{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=11 |archive-url=https://web.archive.org/web/20160805210515/http://jalonen.fi/index.php?mid=4&pid=11 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref>
; JJ-910: Single-shot action in blued steel.<ref name=":5"/> Trigger pull weight 700-1500 grams.<ref>{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=12 |archive-url=https://web.archive.org/web/20160805213759/http://jalonen.fi/index.php?mid=4&pid=12 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref>
; JJ-92: Single-shot action in steel.<ref name=":5"/> JJ-92 has many similarities with Tikka M55, but is a different design.<ref>{{Cite web |date=2014-02-28 |title=Tikkamiehen tarinoita: Kotimainen Custom-kivääri. Jyri Jalonen JJ-92 |url=http://7x57r.blogspot.com/2014/02/talla-kertaa-vastaan-tuli-ns.html |access-date=2023-05-06}}</ref> It can cycle cartridges up to 85 mm total length or .308 Winchester.<ref name=":1">{{Cite web |date=2014-02-28 |title=Tikkamiehen tarinoita: Kotimainen Custom-kivääri. Jyri Jalonen JJ-92 |url=http://7x57r.blogspot.com/2014/02/talla-kertaa-vastaan-tuli-ns.html |access-date=2023-05-07}}</ref> Trigger pull weight 700-1500 grams.<ref>{{Cite web |date=2016-08-05 |title=Jyri Jalonen |url=http://jalonen.fi/index.php?mid=4&pid=13 |archive-url=https://web.archive.org/web/20160805183613/http://jalonen.fi/index.php?mid=4&pid=13 |access-date=2023-05-07|archive-date=2016-08-05 }}</ref>
; JJ-92A: Single-shot action of aluminium with steel insert (the A in the model name stands for aluminium).<ref name=":5"/><ref>{{Cite web |title=Silhouetten-Schiessen Geschichte, Regeln, Waffen, av Guido J. Wasser (imssu.org) |url=https://www.silhouetten.org/Wettkampf/SWM1.PDF}}</ref><ref>{{Cite web |last=Yumpu.com |title=Spezialdisziplin Speziald |url=https://www.yumpu.com/de/document/view/38592937/silhouetten-schiessen-bds-silhouettede/2 |access-date=2023-05-07 |language=de}}</ref> Trigger with a manual safety or a 100 grams trigger without a manual safety. Adjustable distance to the trigger.<ref name="Jyri Jalonen"/> Wooden or fiberglass stock.<ref>{{Cite web |date=2016-08-05 |title=Wayback Machine |url=http://jalonen.fi/media/JJ-silhouette.pdf |archive-url=https://web.archive.org/web/20160805151650/http://jalonen.fi/media/JJ-silhouette.pdf |access-date=2023-05-07|archive-date=2016-08-05 }}</ref> Available in many different chamberings.<ref>{{Cite web |date=2003-12-10 |title=- J J s i l h o u e t t e - |url=http://personal.inet.fi/yritys/jyri.jalonen/silhouette.html |archive-url=https://web.archive.org/web/20031210111400/http://personal.inet.fi/yritys/jyri.jalonen/silhouette.html |access-date=2023-05-07|archive-date=2003-12-10 }}</ref> 17 mm dovetail rail milled on the top of the action for attaching sights. Was used in the pistol Silhouette 92A which was Jalonen's base model for the IMSSU production class. Being a long action it is somewhat long for PPC/BR cartridges. The stock is attached to the action's rear tang, and the maximum barrel length is 215 mm.<ref name=":2"/>
; JJ-93: Magazine action in blued steel, with trigger pull weight 700-1500 g, safety with 2 positions and adjustable trigger distance.<ref name="jalonen.fi"/>
; JJ-930: Single-shot action in blued steel, and with a 2-position safety.<ref name=":3"/>
; JJ-50: 12.7×99 mm rifle<ref name=":4"/> in blued steel, and with a 2-position safety in front of the trigger.
== See also == * Loppo, another Finnish firearms manufacturer
== References == <references />
Category:Firearm manufacturers of Finland