Recent content by cbuck516

just using all default values and profiles, the 69.0gr RL22 load produced 68.5kpsi. That doesn't necessarily mean that's exactly the pressure that your load is at, but it provides a point for comparison to other powders. If I use the default N565 profile, 72.5gr also produces 68.5kpsi. Use that...

Comparing those two powders in GRT with the information you provided, it looks like you should be able to get a little more velocity out of N565 at that same pressure level and possibly a little greater case fill. That is using the default powder profiles though which I haven't found to be...

I ran a GRT simulation for a 26" 6.5CM and there is roughly a 20FPS gain in max velocity for Staball HD over Staball 6.5. Also, powder burn rate with the Staball HD is much slower so you would likely not get greater than 90% powder burned before muzzle exit. If you are looking for speed I would...

At those dimensions, does that actually keep the bearing surface of the 150gr out of the neck/shoulder junction? Just by eyeballing the photo, it looks like the bullet would be inserted past that junction. Not actually having a 150gr in hand to measure, I would have assumed that it would require...

Is that an extra 0.040" freebore beyond a saami chamber? I was hoping to do a 1:7" 270WSM with a saami chamber. I will be curious where you find the lands with the 140gr and 150gr

I can run all the numbers in GRT if you can PM me all your load and rifle details.

I don't want to derail this Hammer-specific thread. Details of that particular elk hunt can be found in post #1385 here or you can shoot me a PM for further information.

I would not personally hesitate to take an elk with the 6.5 124HH as long as you limit yourself to a reasonable range. I killed an elk this past season with a 110gr solid copper projectile going 3500fps. Solid copper bullet going stupid fast can kill very effectively. You still have to do your...

Surely that is a typo. A 220-240gr projectile going 3300fps is not possible from a 6.5PRC. Are you asking about the 124gr projectiles?

Thanks for the data point. I will see if I can find some H4895 to test. I was not aware that there were any powders that worked well with super low case fill, but now that you said that, trail boss is popular for subsonic loads and that has to be an incredibly low case fill %. In my case, I am...

I believe they technically fit, but I would bet money that they ignite a rifle charge very poorly. Sounds like another interesting test.

Next I am going to use N565, a powder that I have success with hunting below zero. I have already loaded 3-shots each at loads with case fill at 95.5%, 90.7%, 85.9%, and 81.2%. I will shoot them in that order and see what happens using the CCI 200, the primer that exhibited the most powder...

In a perfect world, loads are developed to work "anytime" regardless of environmental conditions. With some further testing, my intent is to potentially identify some of the bounds at which that "anytime" level of performance is degraded. There are a pretty huge number of variables involved in...

Yeah, that is kind of a whole other can of worms that I really wasn't trying to test. If there are any primers out there that don't ignite at all in cold conditions that would be pretty bad news for business. Hopefully manufacturers are doing their best to ensure this never happens. My test...

If the grits didn't leave such a crumb trail down the barrel there may be some logic there ;) Luckily the mess was easily cleaned up with a bore snake. I first thought about trying to stuff a cotton ball in there, but my tiny man-brain somehow thought the grits would clear themselves out of...