10 shot groups at 285 yards with the 257 Haley Scadalous
Today I shot the Haley using unlubed, 257420 bullets that were cast from one cavity only and that cavity has been marked with a punch to give a reference mark so I can index them to the sizing die and then to the rifle.
But then I got distracted and forgot to index them in the sizing die. ๐ณ
But I did index them to the rifle.
I was shooting tethered to 3 66 cf tanks and regulated to 4300 PSI, 40 degee F and almost no wind.
My wife knocked my electronic scale off my bench and broke it, so I can’t weigh my bullets, as a result I shot 12 shot groups and repainted the two most extreme bullets from each group.
I shot 10 shot groups so that I could learn and compare. I have said that three and five shots groups don’t tell you much as far as alloy, lube, hold sensitivity and fill pressure. They can tell you field shot count and how it relates to hunting accuracy tho, but I was not after that.
I also did not sight directly to 285 yards, but was 21 MOA low at that range to keep the Leupold more towards being optical centered, so I was holding on the 21 MOA mark in the scope.
The bench and tanks

First group came in at 7 inches for 10 shots

Last group of the day was 5.5 inches for 10 shots

Regards,
Roachcreek
All Replies
- You must be logged in to reply to this topic.

It’s really coming along there RC! ๐
Mike