Ok so the Swiss 1889 is technically an antique in most of the country but NJ is complex for no reason. It has a 12 round magazine which was on uncommon for the time and it is detachable so you can clean it and replace damaged magazines. It's a bolt action and versions of the magazine were used in the 1896 which was an improvement to the 1889 and a small 6 round magazine similar to the 12 round magazines were used in 1900 and 1905 short rifles. Also if it matters you can't get 7.5x53.5 ammo unless you reload for it. Some people have modified the 1911 series of Swiss guns (also bolt actions just new guns using the new ammo 7.5x55) to use these magazines cause they wanted 12 rounds instead of the standard 6 round magazines. Now is it legal? Like I am not getting one if I have to pin a magazine that is worth like $150 cause of 2 rounds

There is no round limit for a bolt action rifle.  As long as the mag can't fit in a semi-auto!

Then i should be good because they never were in semi auto guns. Thanks.