Care to provide some data that shows he’s wrong, rather than cluttering up the thread with trolling BS? I like to see data in technical threads, not ad hominem attacks with no substance. Thanks!
The caveat isn't usually thats its not possible, but that its not possible while staying inside safe recommend pressures.Yeah that's really pushing it for sure. I'm just saying in response to this post, if it was possible to do it with a 208, the 175 class bullets the OP wants should be able to get there.
People who know what they’re doing dont think im trolling.
He put a max charge of the fastest burning powder recommended for that bullet weight into a thick heavy military case. That particular charge was developed in the thinnest case on the market. If you put that charge in a LC case, youll drive pressures through the roof, especially because xbr is fast burning for that application.
What he did is retarded and dangerous. And people like you who dont understand how case volume affects pressure are just eating it up. So go do some research on the subject before posting anymore ignorance.
Retarded and dangerous?
I have used this load for almost 3 years.
There have been NO ill effects in my rifle.
I think you paint with a broad brush?
Thats not to say your wrong in any way!
I guess I didn't explain my loads the way I should have?
I have a pretty long jump even with my coal of 2.850 I still have .100 jump with the RDF also I can insert the bullet into the case filled with 42.7 grains of 8208 to a coal of 2.75" . So from my stand point I'm neither retarded or dangerous!
Should I have stated this on a public forum? Probably not but to say its not possible to get a 2650 as the OP was wanting is not true either.
If I seat the bullet deeper as stated that gives me a .10 more volume then add another .10 of jump to the lands and I'm not pushing the envelope!
In fact I was having a hard time with the rifle not cycling with lighter starting loads.
For what its worth, this is what GRT puts out for the load being debated. Puts him at 64,000psi, while spicy and technically over charged. Its not gunna blow up the gun and with strong primers should only show flattened primers as a pressure sigh. I know im comfortable running my 308 up to 65,000psi before my butt starts to pucker(proof load for 308 is 75,275psi). So I'd say this load is plausible, albeit deffinatly qualifying under the +p Category. Lets try and keep it civil here talk with the data.The rdf is 1.35” long to the SMK being 1.25”, so its .100” longer. You seating the RDF to 2.850” is still seating it deeper than the SMK at 2.800”. You are doing this in a LC case having 2 grains less case volume than the Winchester case. If your powder charge makes 61,000PSI in a Winchester case, its making well in excess of 70000 in a LC case. And this is with XBR of all powders, probably the most unforgiving combination for the 308. I have LC LR brass. I know how it handles pressure.
You’ve using this for 3 years? Lol!
My only issue is with the R700 Short Action im limited to 2.840 if i want it to feed in the magazine.Not right . From a 2.850 I'm still jumping
.10 to the lands with the rdf. Doesn't matter the length, what does matter is the profile of the particular bullet.
The baring surface is shorter.
There's a lot to be considered when working up a load with any powder.My only issue is with the R700 Short Action im limited to 2.840 if i want it to feed in the magazine.
If you haven’t already done so, try 24.8-25g of AA2520 with 77 smks in a lake city case, R7-1/2 primer: basically a clone of mk262 mod 1. Shoots .75-1.0 moa in my mod 1 and 1.5 or so in my carbines.I've had great results with accurate 2520 shooting a 175smk. I do use lapua brass though. Happy to share the load data
I will do that. I have 75gr bthp Hornady though for 223 and I've been running 25.2gr of TAC for that one and had very good results, but I've only run it in my bolt gun. On the list (which has grown considerably of late since swapping some guns /barrels/actions around), is to work up a load for my CLE precision AR. I have lapua brass but I have been strongly considering getting some LC brass for that gun and keeping the lapua for bolt gun only.If you haven’t already done so, try 24.8-25g of AA2520 with 77 smks in a lake city case, R7-1/2 primer: basically a clone of mk262 mod 1. Shoots .75-1.0 moa in my mod 1 and 1.5 or so in my carbines.
308 bolt gun- BMP - ss bemchmark or Hawk hill- 22" / 1:10T.Id love for you to share your 2520 load data for the 175's. I'v been using 25.2 grains of 2520 for my mk262 clone.
Sorry, just seeing this. Not my picture but heavy ejector mark similar to the case on top. No blown primers. Should’ve started lower, just used a round that’s fine in my bolt 308 in a new AR.What are we defining as "high" pressure signs? Flattening primers or you punching em and stretching the cases?
I always kind of wonder how big of a deal flat primers are? Seems like some actions produce that even when the pressure isn't what you'd think it would be. I'm not a risk taker with ammo loading though.