Request a manual from Beretta's web site
Currently (November 2009) they run about 750.00 New and about 675.00 Used.
Tigger/sear needs cleaning/ repair. See a gunsmith if a thorough cleaning does not correct problem.
To disassemble a 20 gauge Beretta 390 shotgun, first ensure the firearm is unloaded. Remove the forend by pressing the forend release lever and sliding the forend forward. Next, open the action and remove the bolt by pulling the bolt release lever and sliding it out of the receiver. Finally, to separate the barrel from the receiver, locate the barrel latch, press it, and pull the barrel away from the receiver.
390 squared is 390 times 390 = 152,100
To disassemble a Beretta 390 shotgun, first ensure the firearm is unloaded. Begin by removing the forend; press the release button located on the underside of the receiver while sliding the forend forward. Next, open the action and remove the barrel by pushing the barrel release button and sliding the barrel forward from the receiver. Finally, you can access the internal components by removing the trigger assembly and bolt, if necessary, following the specific steps outlined in the owner's manual. Always refer to the manual for detailed guidance and safety precautions.
46% of 390= 46% * 390= 0.46 * 390= 179.4
390 is divisible by 3: 390/3 = 130 390 is not divisible by 9: 390/9 = 43.3 recurring (that is, 43.3333..) 390 is divisible by 10: 390/10 = 39
20% more of 390= 390 + (0.2 x 390) = 468
70% of 390 = 273 = 70% * 390 = 70%/100% * 390 = 273
110 percent of 390 =429 110% of 390 = 110% * 390 = 110%/100% * 390 = 429/1 or 429
390 x 3 = 1170 390 ÷ 3 = 130
390 = 39,000%