I want to go back to this. Why are you concluding that the shoulder is bulged from this? Is it just from seeing where the shoulder is contacting the case gauge? It could just be that the shoulder angle on the sized case is closer to the angle of gauge than the fired case?
Yep, I know it will do more, but I don’t need it to right now. With about $7 in components and one trip to the range, I have no problem leaving it as is. I’ve got another rig that needs my attention.
I agree with this, not enough neck tension. Take a loaded round and put it in a kinetic puller and give it a few light taps and see how much your bullet comes out. Repeat with more force if it doesn’t move. Make sure it takes a pretty good whack to move the bullet, otherwise you will be moving...
Just wanted to share this in case it helps someone else. I loaded up some 338 Win Mag for a rifle that I had not shot/loaded for before. Remington 700 338 Win Mag that’s had some work put into it. I forget if it’s a 22 or 24” barrel, I think 22”. Resized some 7mm Rem Mag RP brass using a...
Was the bolt harder to open after firing than just cycling the rounds that were hard to open and close on? If so, that could mean that they are generating too much pressure. That would lean me towards the bullet being seated to shallow/long. It might be in the lands.
I’d try a Barnes 127 LRX. I also recall someone saying that match burners actually had pretty good terminal performance too. 140gr Nosler partition and accubond are always a good option. I’ve heard good things about the Hornady CX as well.
I emailed Barnes and asked them. They also clarify that is the minimum acceptable opening and that those velocities will result in about 1.7x original diameter. To get 2x, add 100-200fps. What I’ve read in other threads that I don’t have an original source for is that the 168 and the 180 are the...
I run 168ttsx in my 3006 with 4064 and I’m a bit over 2800fps with a medium-high charge. The 165ttsx is made for the 300wm. It has a shorter profile and it also has a higher minimum impact velocity of 1800fps vs the 168ttsx at 1500fps.
That’s fine. I have made some short necked 350 Norma Mag and 338 Win Mag when using 300 WM and 7remmag brass respectively. Both shot fine, great actually. I think the uniformity is important. So for those three, I’d probably fire them and then send two to Hornady to get tapped, and maybe use the...
Variables I didn’t see addressed yet:
Tumbling wet or dry?
Are the cases themselves consistent lengths?
Dry lube inside neck?
Neck chamfered?
Seating stem clean?
Assuming a 200fps increase for barrel speed up...
Quickload shows this load on a 15” barrel as 2,888 for a charge of 45.5, and 82,068 psi. That is pretty close to what the results above are showing.
A proof load at 1.3 x SAAMI (78,000) would be 44.8-44.9, with velocity registering ~3,050 on a...