Howa Mini Action reloaders COAL / CBTO

[Briano23]

What lenght are you seating the 123 gr ELD-M

[wannabustbunnies]

I haven't actually done any load development with the 123's as I have just been using the TNT'S. I would start at 2.27" and test different depths from there.

[Briano23]

Just received my Forster ultra seating die touching the lands measured CBTO 1.7510"
I plan to start my first reloads at
1.7310" CBTO and adjust from there.

[riuma]

But chasing lands is pointless. If a bullet does not group in any load range with documented COAL, it wont do it just because its close or into the lands.

I agree. ~Riuma

[Bottomdweller]

I did the split case thing. Did it about 25 times to get an average then colored the bullet with magic marker and looked for the land marks. I had an old bench rest shooter that taught me to use a fired case over the bullet tip to measure overall length. I use a spent .22 case for the grendel. Anybody's number is really pointless for you to know in my opinion. Their equipment is not yours. I'm jealous of the hinged floorplate. I wish I would have had that option. If you have room go long. I throated mine .25 inches. My pet load is 33.3 grains of LVR behind a 123.5 gr. partition. (Tip filed off to the gilding metal)

[Briano23]

After reading several reloading manuals I chose for my first load to use a OAL of 2.260" or 1.673" CBTO, 123 gr eld-m with 26.3 to 27.0 gr of IMR 8208 and CCI450 primer

My bullet jump is 0.080" of the lands
which will leave me plenty of room to experiment looking for the ideal Target/ Hunting load.

Powder wise I have IMR 8208, H335, H322, and CFE 223
and all the reload data for each.

What do you think of the 6.5 Grendel reloading Handbooks? Look to get both versions.

[cwlongshot]

What you really need is a sinclair "nut".

https://www.brownells.com/reloading/measuring-tools/bullet-comparators/sinclair-hex-style-bullet-comparators-prod83792.aspx

https://youtu.be/u6P3GeLn2BA

Combined with the length of your chamber you can make More accurate ammo.

CW

[Azureoval]

123gr Nosler Comps = 2.292 Coal -1.782 CBTO
130gr Nosler RDF = 2.420 Coal - 1.774 CBTO
130gr Berger OTM TAC = 2.366 Coal - 1.758 CBTO
130gr Hornady ELD = 2.360 Coal - 1.743 CBTO
Using a Hornady Lock-N-Load Case length Gauge.
AS always, this is my barrel YMMV !
My Mags are 2.34 max length

[kiwi shooter]

[Briano23]

Thank I'm at 2.260" to start

[micknz]

with some minor seating ladders, I've settled with 1.725" CBTO with Sierra 85gr HP, and by chance the ELDM 123gr came out with the same value... so I'm using that as a baseline for all my loads for the Howa Mini