Gunwerks brass 6.5 CM

[Onesock]

I have switched from Hornady brass to Gunwerks brass. I ha e been loading 42gr Rl17 behind 140 berger in Hornady brass. The brass weighs about 148gr. This load has consistently shot 1/2 min at 600.
I loaded the same load in Gunwerks brass that weighs 168gr. My group opened up from 1/2moa to over 1 moa.
Yes the speed went up because of the heavier brass I suspect.
Has anyone else had this problem? Should I just shoot smaller loads in the gunwerks brass until I come up with the same speed as the Hornady brass?
Thanks

 

[sedancowboy]

Yes just drop your charge until you are at the same velocity and your accuracy should return. remember if velocity went up pressure also went up. Anytime you change a component lower your charge and work back up to accuracy or pressure.

 

[bigdaddyWSM]

I have switched from Hornady brass to Gunwerks brass. I ha e been loading 42gr Rl17 behind 140 berger in Hornady brass. The brass weighs about 148gr. This load has consistently shot 1/2 min at 600.
I loaded the same load in Gunwerks brass that weighs 168gr. My group opened up from 1/2moa to over 1 moa.
Yes the speed went up because of the heavier brass I suspect.
Has anyone else had this problem? Should I just shoot smaller loads in the gunwerks brass until I come up with the same speed as the Hornady brass?
Thanks

When I switched to all Gunwerks brass in both my 6mm & 6.5 mm creedmoor's had to be dropped almost a full grain of H4350 to get back to what I wanted in MV & accuracy. my Hornady 6.5 load USED to be 42.5 powder ( I know over book max) now it's 41.7 for 2802 MV with single digit SD & ES with Gunwerks brass which is very consistant & same price per 100 as Hornady, I love it.

 

[fabricator21]

Does anyone know if gunwerks brass is made by adg or bertram?

 

[bigdaddyWSM]

Does anyone know if gunwerks brass is made by adg or bertram?

 

[.30cal fanatic]

Didn't they buy out a factory and start making their own?

 

[fabricator21]

Is it just coincidental that gunwerks website shows 6.5 prc brass available in june and adg told me that their next production run would be sometime in june as well.

 

[Rhovee]

ADG makes there brass IMO. It's pretty obvious to me. They have the same offerings. Get new shipments at the same time. Looks exactly the same.

 

[5.56×250]

ADG makes there brass IMO. It's pretty obvious to me. They have the same offerings. Get new shipments at the same time. Looks exactly the same.

If it smells like a fish and swims like a fish, its probably a fish