New Rifle-High pressure, low velocity

[phorwath]

Originally Posted by Joel Russo

That's why I suggested he do the above.

What do you mean by measuring case stretch??? Where are you suggesting those measurements be taken?

[Shaidon]

Well it seems that taking setting my neck cutter .001 tighter made a difference. I am now shooting 94 gr H-1000 and getting about 2830 with little to no pressure signs. It seems the more i shoot it, the more it breaks in and the pressure go's down. BUT, now I am having another problem. In the 50 or so rounds that I have put down the tube now, 5 of them did not fire. The firing pin is striking the primer, just not hard enough. I leaves a mark but no boom. Now im trying to figure out if it is a headspace issue or something with the firing pin assembly. Anyone else had this problem with a Stiller Predator?

[Hired Gun]

Load up a bunch of fireformed brass and see if it still occurs. If it only happens on new brass then it is a headspace issue.

How is it shooting? It sounds like a really nice setup. Any pictures?

[Shaidon]

I think Im gonna head over to the smith and have him take a look at it. Its shooting really well for just starting out. With an 8 shot string over the chrono I had a 32 fps ES, not too bad for virgin brass. Im sure it will tighten up with once fired brass. I have some pics but cant figure out how to put em on here, it says there is supposed to be an attachment option on the reply but I have nothing.

[Joel Russo]

Originally Posted by phorwath

What do you mean by measuring case stretch??? Where are you suggesting those measurements be taken?

Using a belted mag case for example, measure in front of the belt. .005" stretch over a virgin piece of brass is at or very near max with that powder/bullet combo.
I generally stay with .003"-.004".

[Hired Gun]

To post pictures you must first upload them to a hosting site. I like ImageShack® - Image Hosting
Once hosted your then bracket the url to you picture between [img]h t t p://pictureurlhere[/img]