Beretta Factory 92FS Magazine 9mm 10 Rds

I was surprised that this mag is much more tighter than what i thought - i was unable to fully load 10 rounds! The spring feels very very hard to me. I am not sure if it should take some time to break in. I think i need to buy some mag loader.

I recently purchased a used Beretta 92FS, which came with two 10-round magazines. The magazines, some generic brand, caused misfires every 3-4 shots. I purchased this Beretta made magazine and have put 250 rounds through it and NO jams.