Advantages or dis Advantages for a 4mm arrow

[roadsterguy]

Been away from bow hunting for a few years and looking to pickup a lighter draw weight bow and have 1 1/2 doz. 4mm FMJ, only used for turkeys which worked fine, bought them maybe 8yrs ago but thinking of keeping them. Any good or bad results using a 4mm arrow?

 

[Bump79]

Good - less wind drift and maybe some penetration. Marginal there IMHO.

Bad - Components aren't as strong. So you need to invest in better broadheads and collars if deep six. If using a half out or similar - they likely need upgraded as well. The half outs bend super easy.

 

[Mighty Mouse]

The 4mm juice ain’t worth the squeeze IMO. The only 4mm insert I would trust is a Deep Six HIT (hidden insert), which severely limits your broadhead choices to only those offered with Deep Six (6-40) threads. Standard diameter (6.5mm) arrows with good old-fashioned full-insertion flanged inserts are my go-to recommendation.

 

[roadsterguy]

The 4mm juice ain’t worth the squeeze IMO. The only 4mm insert I would trust is a Deep Six HIT (hidden insert), which severely limits your broadhead choices to only those offered with Deep Six (6-40) threads. Standard diameter (6.5mm) arrows with good old-fashioned full-insertion flanged inserts are my go-to recommendation.

I need to verify but I believe it is the Deep Six HIT. I bought extra components when I bought the arrows, I'll have to check. Thanks for the info