Elite Iron makes one of the best 6.5 cans, particularly for a 6.5G which I use 'em for. Don't own an Elite 6.5 though, but Dale stands behind it and that's enough for me. The Elite will weight more but cost less. It'll have the same solid lock up QD mount and about the same quality in sound reduction. The Elite can handle more abuse and heat.
For a precision rifle where it won't heat up that much or see lots of abuse and the lower weight is a factor or would simply be nice, and the increase in price isn't a deal breaker, then TBAC's Ultra line is hard to beat. I just got my 6.5 Ultra 9 and it's damn nice. I got it for a 20" Grendel but haven't used it yet or compared it to the .30 Ultra 5 or 30CB9 I also have. I can say the 30CB9 (the older version of the .30 Ultra 9) was pretty nice while the 5" is more or less like a moderator but better. It's loud but not TOO loud. Amazing for SBR's. Generally a larger caliber can on a smaller bore may have a dB or so more extra vs. the correct caliber can, however, it's also a deeper, throatier sound and to many that's more desirable than the higher pitch dedicated can. The difference in suppression is effectively up to the observer. Still, I recommend getting the appropriate can for the rifle, but I tend to suppress most of my rifles with their own cans.
Were I you, I'd get the 6.5 Ultra 9 --the 7 is nice but the 9 is better IMO for dedicated use on a precision rifle. When I want 'em short, I go with the 5" cans. Great for SBR's. Most of my military type cans lie between 6.xx and 7.xx inches and do pretty nice, especially on rack grade rifles or ones that see abuse, but aren't nearly as fit for dedicated precision rifle use.
