Recent content by mooredj

Just some data I put together since I am jumping into the 7 SAUM arena. I am really working on getting the heavies to work. I wanted just a bit more powder capacity to makes sure I can get to 2900fps. As noted in the previous post, I have set this up with a 0.218 freebore as designated by the...

I have found this to be true and the only way to improve on the velocity is to pick a different powder. For instance, in GRT modeling for the 7 SAUM, I can get to 2900 FPS with H1000, but If I use 4831 or 4350, I can only ever get to 2850 or so holding the pressure (60000psi) constant. I set...

Doesn't this negate some of the reason behind the short action? Doesn't cutting out that much bottom metal reduce the stiffness of the action that precision shooters want?

I posted this because I wanted to know the math behind what the gunsmiths work off of when you send them dummy rounds. Now I can just send them a chamber print, make their life easier, and I know what I will be getting when they send me the barrel. In this case, I have the option of either...

Two things: 1) I had actually thought of using an even larger throat angle of 3 degrees until I did enough reading to figure out the benchrest community had figured this out already. They determined that after shooting through a barrel set up this way, you eventually end up with a 1.5 degree...

I know this thread is a little old but I will reply anyways. I like the controlled feed of the Zermatt Arms TL3 that I own. I have no issues with it feeding 6.5 PRC and I don't believe it will be an issue with the 7 SAUM either. The other thing is that I can buy prefit barrels and change...

This is what the cartridge and chamber drawings look like if anyone is interested. I have found that the ADG brass is thick enough that you can run it in a SAAMI chamber with no modification except to lengthen the freebore. The standard SAAMI throat angle is 1 degree. You could use a 1.5...

This is the modeled load data using GRT. I need to provide an explanation on why I show the freebore as 0.236. It is actually the traditional freebore as everyone knows it plus the chamber to bore transition distance added in. That distance is 0.0182 so that plus the traditional freebore of...

Just some data I put together since I am jumping into the 7 SAUM arena. I am really working on getting the heavies to work. I wanted just a bit more powder capacity to makes sure I can get to 2900fps. I have set this up with a 0.218 freebore as designated by the column noted in green. The...

Thanks, that was the answer I was looking for and I appreciate your willingness to share your experience with others.

I am not disputing this. I would like your thoughts if this would continue to hold true out to a mile. I figure you might also have that knowledge through experience and can share.

Just bought a Howa 6.5 PRC heavy barreled action from Brownells for $519 on sale. I have a MDT Oryx chassis it is going into I picked up on the December sale for a little over $200.

7mm PRC

Is this the chromoly version or the newer stainless version?

338 Norma Magnum. Yeah, I know it is not on the list. I might as well add to the 13 year old thread.