This may be a dumb question

[V00D00]

I feel like my 7prc (tikka) is much louder than my 300wsm (savage) and my 308 (rem 700) griffin recce 7 and nomad ti.

 

[ChrisAU]

More powder = bigger boom

 

[CMP70306]

More powder = bigger boom

Smaller diameter bullet = More gas escaping around it through the .30 cal bore

I feel like my 7prc (tikka) is much louder than my 300wsm (savage) and my 308 (rem 700) griffin recce 7 and nomad ti.

Probably the case, with our Nomad Ti the .22-250 is significantly louder than my 6.5 PRC but my brothers .300 Win Mag is quieter than both despite burning significantly more powder. The only thing that equalizes it somewhat is a longer can like the Nomad L where the overall reduction is high enough it is hard to tell the difference.