6.5 creedmoor 123g hornaday eld-m 4895 loads

43g of imr 4350 behind the eld-m 123 g bullets worked great and didnt loose any primers out of the s&b brass so atleast i have my starting point when it warms up later this week ill get out the chrono and do some accuracy testing
 
I developed a whole bunch of loads for both 6 and 6.5 creedmoors for quite few builds and occasionally encountered the issues you are having. I eventually got sick and tired of all the frigging, tuning, brass anxieties etc. and did two things that made the problems go away: 1) get the small primer brass from the manufacturers I mentioned above; and 2) get JP Enterprises' enhanced high pressure 308 bolt assembly, which is specially designed to deliver the proper pin strike in 308-type bolts used in higher pressures.
 
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I just put ina pretty big order at brownells since the having a 1 cent hazmat 0$ shipping deal going got small primer brass 8lbs of h4350 few assorted 1lb powders to try in the grendel and a ton of other needed reloading supplies
 
did some more testing today but thistime with 4350 , still having primer issues though

but to start
43g of 4350 (imr) got the 123g eldm's moving out of the 20" barrel at an rounded average of 2850fps

5 round group was very accurate compared to the factory ammo minus a single flier on the first shot of the group which was all me

i only lost a single primer , but noticed the firing pin had punctured 3 primers out of 20 rounds , no overpresure signs on brass


on a side not i got threw some loads on the grendel as well
26g of 4895 got me a rounded 2400fps average pushing 123g eldm's out of the 20 inch barrel
27g of the same got me a rounded average of 2525fps and had a much better group but starting to show slight presure signs so cant push them any harder

factory hornaday black eldm had an rounded average of 2600fps

so im done with trying the 4895 in the grendel
 
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27g load 5 shot grendel group at 100y
Oy0EBAf.png

need to go back and look at the video from my scope but pretty sure that left flier was all me as i pulled the trigger

5 shot creedmoor group (left side)
1 flier off to the left of the picture
GmTaxot.png

aparently after doing a factory reset on that scope i re-entered my zero cordinates wrong or messed up some of the ballistics data in the scope
 
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mel80
I had some problems with Large Primer 6.5mm Brass with my first 6.5mm CM and it turned out that the primer pockets were wearing out after just a few reloads using Norma and Hornady brass.
Turns out that the chamber was a bit tight and raising the pressure, but I had pressure signs also.
I got Savage to bore the chamber out a few thousandths and the problem went away.

I switched to Lapua small primer brass and average more than 20 reloads before I have to replace the small rifle primer brass. The accuracy is slightly better with the small primers when I use CCI BR-4. CCI 400 is close but just a bit less accurate.
Federal 210M primers were third and 205M primers were worst.
 
my delivery from brownells will be here on xmas eve and then ill have a bunch of small primer pocket brass to try
i did inspect a few rounds today before i went out shooting and it seems like the winchester primers i used stick back out of the brass a lil further then the factory ammo primers in both the s&b and hornaday stuff
ive got another brick of cci #200 and #400 primers comming with that order

trying the cci's in the brass i have + trying out the small pocket brass is my next step
once i get my primer issues sorted im going to see if pushing those 123's to 3-3100fps or so in the creed is possible

and id like to see about 2650-2700 out of the grendel also if possible


other then that the good news is i shot both the grendel and the creed today at 300-625 yards all rounds on target on a 20 inch gong out of both , since we have our cows out in the field i couldnt stetch my shots out to 1500 yards like i wanted to


the bad news is my gong wont hold up to the creedmoor with the 123g bullets 1-400 yards comming out of the muzzle at 2850-2900fps

it did hold upto the 140g 2400-2500fps stuff just fine though and no issues with my grendel unless im in really close but im not shooting at the gong that close anyways
ta3NSvV.jpg

yqv3HEl.jpg


when i build the rest so i can have them spread out at 250y intervals ill prolly stack 2 plates per gong on the close up ones , i make them out of old discs off our disc harrow so i got tons of them laying around there pretty damn tough specially considering they are only an 1/8th to 3/16th thick


when my new creedmoor gets here ima be pretty dang busy lol
 
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my new triggers are here so im going to get them installed and go take some 1000y+ shots today , this time i wont forget my sd card so i can take some video
range day always a good day
PRoAVJ3.jpg
 
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i may have found my primer issue in the s&b brass , when resizing/removing the primers the pin for removing the primer is actually slighly larger then the hole in the bottom of the case so its pushing some brass up into the bottom of the primer pocket , my die set uses the small pin as well.
this also explians why ive broken a few pins with the s&b brass

i caught it this morning when i decided to go ahead and deprime/size all the brass i had , theres no additional resistance on the press over normal which i dont understand. but i noticed it when i was checking every case for lenght with my calipers.it doesnt do it in every case it was about 40% of the brass it was doing it to

im going to carefully clean up the burrs in the primer pockets and see what happens, my brownells order gets here today so ill have some small primer brass to try out as well
 
so 20 rounds since finding that out and switching to cci primers , the cci primers deff seat deeper in the case and i havent poped or pierced a primer yet

switched to h4350 and right now im at 43g and 5 shot string threw the chrono got me
2910
2905
2904
2894
2901

still using the 123g eld-m bullets

accuracy improved over the 42.5g load ive got 5 loaded up for tommorow at 43.5g
 
the gun does not like 43.5 so going back to 43g of powder need to check accuracy out at longer ranges hopefully everything is good would be nice to be able to use the 123g bullets across the grendel and both creedmoors to make buying supplys a lil cheaper
 
It gets a bit confusing when you mix your Grendel and creedmoor results in the same post--it might be helpful to separate the two.
 
i havent posted any grendel results ( opps just the one post ) was just saying trying to use the 123's in the creed to make it easier to load for both
 
I'm surprised nobody mentioned the StaBall 6.5, developed specifically for the 6.5 Creedmoor. There's a thread on it in the handloading forum. That forum is where this thread really belongs, anyway, so I'll move it.
 
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