SCH OUTDOORS

Pressure Signs

Jdrivsd619

Train Hard. Hunt Harder.
Feb 6, 2015
234
4
18
Jamul
I have noticed the last few loads I have developed (starting from 1gr above minimum - .5gr below maximum) my bolt handle on my rifle is getting increasingly more difficult to close and open after firing. My groups have also seemed to open up quite a bit from 1-2". I could not figure out why my bolt was getting so sticky until i decided to purchase a digital scale today and realized that the balance measure i had been using to weigh my charges was slightly off. For example, I measured 46.7Gr on the balance and then checked it on my new digital scale and it read 48Gr. I believe I have discovered my problem.......
But attached are pictures of the brass i was using that caused my bolt to stick...... does this brass look over pressured and should it be tossed? Any advice would be much appreciated thank you.
 

Attachments

  • IMG_1315.jpg
    IMG_1315.jpg
    2 MB · Views: 25
  • IMG_1316.jpg
    IMG_1316.jpg
    1.7 MB · Views: 24
  • IMG_1317.jpg
    IMG_1317.jpg
    2.1 MB · Views: 24
Snake Charmer said:
From the looks of the primers (what brand ?) and your narrative I would guess that your are at the upper end of pressure with the load, what gun/load etc..?

The gun is a weatherby vanguard S2 in 6.5 creedmoor, the timers are federal large rifle primers.
 
Yep...primers are flowing around the firing pin. Definite pressure signs.
 
buy your self a set of balance weights, I have 2 sets so I can adjust the scale down to the nats ass or check if the scale is reading right nice to know you are throwing the correct weight