▁occasionally ▁up ▁to ▁ ▁for ▁some ▁competition ▁bar rel s . ▁As ▁a ▁result , ▁Rem ington ▁decided ▁to ▁develop ▁a ▁shorter ▁version ▁of ▁the ▁. 2 2 2 ▁Rem ington ▁cart ridge , ▁optimized ▁for ▁use ▁in ▁the ▁XP - 1 0 0 . ▁ ▁While ▁production ▁of ▁XP - 1 0 0 ▁p ist ols ▁chamber ed ▁in ▁. 2 2 1 ▁Fire ball ▁was ▁eventually ▁can ce led ▁after ▁ 1 9 8 5 , ▁Thompson ▁Center ▁Ar ms ▁produced ▁various ▁single - shot ▁p ist ols ▁chamber ed ▁for ▁the ▁. 2 2 1 ▁Fire ball ▁as ▁part ▁of ▁their ▁Cont ender ▁and ▁En core ▁models . ▁R if les ▁chamber ed ▁for ▁the ▁. 2 2 1 ▁Fire ball ▁include ▁the ▁Rem ington ▁ 7 0 0 ▁and ▁the ▁Ces ka ▁z bro j ov ka ▁C Z ▁ 5 2 7 . ▁ ▁Performance ▁ ▁Despite ▁its ▁smaller ▁size , ▁the ▁. 2 2 1 ▁Fire ball ▁is ▁capable ▁of ▁veloc ities ▁nearly ▁equal ▁to ▁that ▁of ▁the ▁. 2 2 2 ▁Rem ington ▁largely ▁due ▁to ▁its ▁higher ▁SA AM I ▁pressure . ▁The ▁maximum ▁SA AM I ▁pressure ▁level ▁for ▁the ▁. 2 2 1 ▁Fire ball ▁is ▁ 5 2 , 0 0 0 ▁C . U . P . ▁as ▁compared ▁to ▁ 4 6 , 0 0 0 ▁C . U . P . ▁for ▁the ▁. 2 2 2 ▁Rem ington . ▁The ▁purpose ▁of ▁the ▁increased ▁pressure ▁was ▁to ▁allow