- Thread Starter
- #21
Jimbee
WKR
- Joined
- Mar 16, 2020
- Messages
- 1,020
I started with some new Norma 6.5/284 brass necked down in 3 steps with a Redding 6/284 bushing die. Somewhere on this forum another member said he was using 55gr H1000 with a 108eldm. I started a 53 iirc and it was too hot. I think my chamber is on the loose side, but was told within spec. I decided to throw money at the problem and bought some Lapua 6.5/284 brass and tried again with the same result. Backed down to 49 grains and it shoots good, but slow. I tried once fired brass at 50gr and get ejector marks and can sometimes feel sticky bolt lift.Just a theory, and I don't have any first hand experience with finding data or loading for Wildcat-284 (yet..), but I have read about excessive headspace and too low of a charge allowing the case head to slap the bolt face and produce ejector marks that are actually false pressure signs.
Were you testing with fireformed brass?
Any bolt lift, or just ejector mark?
Where did you get your data?
I resized the brass with a full length 6/284 Redding die. I measured headspace growth and am just bumping back shoulder until the bolt closes easily, a few thousandths. It requires a bit of effort to resize. It's been a problem child. It's strengthening my resolve to move towards having only 223 and 6cm.