The actual answer is sort of complicated scientificly, but in effect is simple. Simple answer is, it's not a problem. The bullet clears the can before the whole thing tips enough to matter.
A bigger problem with tilting barrels and suppressors is the extra weight of the can causing your Browning tip barrel delay to not tip. Basically the gun becomes a manual repeater. They make devices variously called Nielson devices, liner inertial decouplers or 'boosters' that make the gun/ammo/silencer combination work. Again, there is plenty of science and voodoo in there but the effect is that it works.
In general (but not always) guns like the M9 or the P38 that have a falling lock block work OK without a booster. The barrel recoils straight back so the added weight often doesn't effect cycling. Often enough you can screw a silencer onto a beretta 92 (or other M9 type handgun) load it up with 147 grain ammo (which is generally subcsonic in handgun or smg lenght barrels) and shoot pretty reliably. In general to supress a 1911 type pistol you need to get a silencer with a booster and then it works fine.
You have to remember, shooting silenced is a three part balancing act. You need a gun, a silencer and ammunition that all work together. Getting a centerfire semi auto handgun to work well suppressed is often a more elaborate balancing act that just screwing a can onto a 22 bolt action (or 22 pistol) and plinking away or threading up a 357 Handi and shooting 38 special through a 9mm can. The 22lr is by far the most suppressable round, and definitely a front runner for anybody's first silencer. You will get more use/enjoyment out of that than anything else.
If you are serious about looking into legal silencer ownership, you should go to silencertalk. I think you have to register to see the forum, but there is more info there than anywhere else I know of. Just lurk and read and you will learn a whole lot. Good luck.
