What would be the best pure dex or hybrid at lvl 46

Your question kinda meaningless since, better for what purpose? Overally "pure" always better.As for last part of it :

Weapons for both builds is Bow of The Goddess
Str :50
Vit
Mag:3
Dex:189

Damage (bow only no other bonuses such as equipment,accessories) : 793-1467

Your build ( edited since, if no other bonuses was missing 6 points) :

Str:47
Vit:33
Mag:3
Dex:162

Damage(same conditions) : 730-1350

P.S your build can't even wear shoes of your level since Strength required = 50b:chuckle

For Sharding+ Refining part:
Are you that spender that wastes money on meaningless operation or you planning to stay forever on those levels (46-50)?
However if you insist:
Pure usage of bow : HP since Saphires/any other mag Res shards insignificant, ph res needed in really rare cases so no point to shard with them.
Bow/Fist: HP majority + slight touch of PH

Used 0 sharding+ refining up to 89 b:bye

There is no "correct " answer to this, although I have some advice. My archer is 8x, and I went hybrid (took points from dex and put them into vit) for survivability. At 7x, I restatted to pure dex.

The reason I did this was because by that 7x you have enough dex points available to actually get a pretty decent crit rate going, and your armor is a high enough rank that you can make up for taking the vit out by miraging your armor to +2 or so (and you have access to decent shards.)

So at 46 in my opinion go hybrid and buff your vit a bit. It will keep you from dying and by that lvl Rank /Barbaric rings are available to make up for the crit% you lost by building vit instead of dex.

Only downside is that you will need to restat later.

At your level sharding isn't required. If for some reason you feel you need more HP, common citrines should be more than sufficient until about 7x. Garnets and Sapphires are put in equips sometimes by HA and AA classes to make up for the soft spot in their armour, but archers are better off with cirtines most of the time. The only debate about this is very high level characters using very expensive shards.

The idea of pure dex is when you are killing mobs, you're safest method is to kill them before they even get a shot in. So since pure dex deals more damage, you're theoretically safer with higher dex because you deal more damage and crit more often, which lets you kill your target faster, which means you take less damage.

Pure dex is probably the way to go, but don't worrry about resetting the vit away, it doesn't really hurt you too badly. For cheaper than the reset stone, you could pick up a sinister shooter slingshot, which would probably be better for you than resetting your stats.

At level 46, pure dex pwns with a sinister shooter (legendary slingshot, level 42 - drops in fb39 at calcid). It gives +dex bonus and minus interval, setting your attack rate at .74 attacks/sec (w/o other -interval gear). At 53 I'm still wearing level 40ish quest reward armor that gives +dex bonuses and I just picked up Mystical Realm Pendant (legendary evasion necklace) in my fb51 from Wyvern. Its got a +dex modifier as well as +mag and +vit. Currently refined +1 and not sharded yet. Still kill most stuff before it gets to me, though archer mobs do tend to get a hit in from time to time. I don't die though.

Hitting at 1649 - 2206 at .74 attacks per sec from 30 meters away is sexy. Lol, just gotta pump some STR into my genie for relentless courage to show its true colors.