Gotcha. Sounds like a better option than crimping, can you share what parts/brand you're using? And what diameter is working for your brass?The second solution - use of a full-length bushing die - is the better option. This is the one that I use. It’s a bit of a pain in the butt, because you most likely will need to change the bushing diameter when changing brass types or brands (or even when changing lot numbers). But, when you get it right, it works well to produce consistent, accurate handloads.
Well, 25.2 looks pretty dang good to me, and 2719 fps is nothing to sneeze at.Good shooting!I've been running at max pressure with 88 ELD and it works but I'm stressing primer pockets too much. Barrel has speed up about 75fps since new so I think I can back down and maintain better brass life with good speed.
Here is OCW with 88ELD and CFE 223. Nodes at 25-25.2 and 25.8-26 (very hot load and 26 is known from prior testing). SD is my fault for changing shoulder pressure/bipod load for middle two groups. View attachment 6930998
I have been watching this thread, along with the other Valkyrie threads, and do have my rifle together and shooting, but am only shooting factory right now. Hornady 88 ELDM is doing pretty well in my 22" 6.7 twist Rock Creek barrel from Craddock at about 2750 fps. I've only had it out to 800 so far as I'm waiting on a scope, but the results have been very good so far. At some point I plan on picking up some CFE 223 and Hornady 88s to play with, but really do not have the time right now, so that will probably have to wait until the winter months. Really pleased so far with this barrel.
FWIW, the Federal factory Fusion 90g loads also did well in my rifle, but I'm comfortable with the Hornady results at this point.
Yes, it is correct. I double checked, using my Magnetospeed because of the listed box velocity difference. The ballistics so far are also spot on to the projected drops for 2750 out to 800 yards. There are no undue signs of pressure showing. I can try and remember to take a picture of the primers for you tonight as a reference.Is that velocity correct? You're 75 fps over the box-listed velocity of the 88ELD load (2675 fps) and that is set through a 24" test barrel. Does the brass or primer on your spent cases show any high-pressure signs?
Seems like it could be loaded pretty hot.
It’s hard to wrap my head around why the first 50 rounds would determine the fate of a gas block
the letter said 'port.' guess they're saying it erodes with the higher initial pressures. i actually replaced my block after a few hundred rounds (of 75-90g) for another reason, and didn't notice any port erosion, but wasn't looking for it.It’s hard to wrap my head around why the first 50 rounds would determine the fate of a gas block
I get it. Following simple instructions is an easy way to hedge against screwing up an expensive barrel. Erosion of a PORT seems insane as it is literally full thickness of the barrel. I’m scratching my head but at the same time realizing most of this stuff is voodoo anyways.I figured he meant port and wrote block...
As I understood it, the longer bearing surface on the heavies during initial break in erodes the gas port.
At least that’s their theory for the moment .
As much as I paid for the barrel , I figure why not?
They do not mean the entire port, but rather just where it meets the bore. They normally have a burr when new. As far as why a longer bearing surface exacerbates it while a shorter bearing surface wears it away, I do not know why.I get it. Following simple instructions is an easy way to hedge against screwing up an expensive barrel. Erosion of a PORT seems insane as it is literally full thickness of the barrel. I’m scratching my head but at the same time realizing most of this stuff is voodoo anyways.
How did the factory 88 ELD shoot in your rifle? I shoot the 88 under handloads. Curious about the factory ammo though for substitute in a pinch.So I did the White Oak Precision recommended “gas port break in” on my Krieger 1:6.5 twist barrel yesterday morning. It was already 85F with 96%RH @ 0900.
View attachment 6938044
What a pain in the ass with the BCG short cycling with the itty bitty 55gr SGKs.
The bore probably got cleaned more times that morning than it will be cleaned in the next three months.
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I’m amazed the jackets of the 55s didn’t rip themselves off with a 6.5 twist....
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I finally finished with that dumb shit and ran some Hornady 88ELD factory ammo. The rifle began to cycle perfectly.
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Who’s running 95gr SMKs? Got any data?
I’ve got Starline and Hornady brass and a lot of RL17......
Niles, do you still have the 18" Rainier Arms Rock Creek? I was curious with all the talk about excessive freebore if whether or not this barrel is affected. I have the same barrel and bought it after your review on RA. Its shooting great with 75gr ELD to 80gr ELD but havent tested it with the 88gr ELD yet.For me, I've just been busy with other projects and shooting matchs. My valkyries will be making range trips again come October.
How about the 80gr ELD's? I have a load that works well with the 75gr ELD's with Power Pro 2000MR @ 27.1gr to 27.3gr at 2.260". Is the lead to spec in the RA Rock Creek?Yes I do, but I have not shot it with the 88's yet either. I will say the 88's consistently group tighter than the 90smk in my 22" Bartlien during load development, I'll be surprised if they don't shoot well in the 18" barrel.
Yes I do, but I have not shot it with the 88's yet either. I will say the 88's consistently group tighter than the 90smk in my 22" Bartlien during load development, I'll be surprised if they don't shoot well in the 18" barrel.
My freebore seems spot on (RA UM 26") but chamber may have been run just a touch deeper than I'd want for best brass life. But it's a drill with 88ELDs. This was cold bore 10 shot group with virgin Federal. Had some trouble keeping recoil perfectly straight on the upper right shots.I mean freebore, not sure the terminology. From what others are reporting, RA did get the proper SAAMI reamer...not sure i guess i just want to confirm it.