338-06 AI Creme Of Wheat Fire Forming

[shortstuf92]

I just bought a SS Remington 700 with a 24" Magna ported barrel with a H-S Precision Stock in 338-06 Ackley Improved Caliber. I am looking to fire form some 30-06 Winchester brass that I have sized to 338-06 and would like to try the creme of wheat method my question is for people that do this is. What brand and kind of powder are you using and what amount of that powder are you using? I would like to save on the bullets and rifle powder also wear on the barrel. Also does anybody have a good fire forming load with the 200 grain Speer Hot Core bullet or the Hornady 200 grain interlock bullet that I could use for fire forming and hunting at the same time saving components? Thanks

 

[SJB358]

I used to use the cream of wheat method using bullseye for the Mashburn. I found it way easier to shoot 50 rounds of a normal loaf and have perfect cases when I was done. Minimal throat wear and the load I used was completely elk capable if I wanted.

I’d just pick a 338-06 load, near the top end and size up to attain a false shoulder then slightly size the neck so it fits snug in your chamber. Fire 50 off in your leisure and you’ll still have plenty you can hunt with.

 

[RL338]

Blue Dot and cast for fire forming for me.

 

[6.5_sWv]

If you use the COW fireforming method you'll likely still not get a perfect formed case with sharp shoulders but you'll still be burning primers all the same.

I fire formed some 280rem into 280AckImp by seating the bullets out far enough to firmly contact the lands and provide positive headspace. I used a faster burning powder listed in 280rem data and dropped a grain or so below the max listed 280rem data. I was using blem bullets that I wasn't going to hunt with and I still burned primers but I got trigger time and perfectly formed cases in the process.

 

[grry10]

I use the COW method for fire forming 257 Ack Imp, 6.5 Ack Imp, and 338-06 Ack Imp. My powder of choice is Bullseye, 8.5 grains for the 338-06 from 30-06.

 

[Ridge_Runner]

First use cornmeal, not as abrasive on the throat
2nd 11-12 gr unique charge case, tap it on the bench to level the powder
fill with corn meal
plug with a piece of paper towel...tight
remove brake if you have one
keep muzzle pointed down
watch barrel heat cause it will get hot
clean barrel when your done
shoulders will still be slightly rounded butt will sharpen up nicely on the first full power round

 

[Hunter26]

With my 6.5-270 JDJ, I used a top load from the 270, jammed a long bullet in the lands and just got some good trigger time. Every fire form load I tried was accurate and I hunted with them, shooting deer & hogs. I think I'd only do the COW method if accuracy was really bad.

 

[jimbires]

after trying a couple different ways , I prefer the false shoulder . it's not a big deal to form the shoulder. it also helps extend case life , especially on belted cases

 

[JD338]

For 280 AI, I used a max load 280 Remington to ff cases. I also used a false shoulder on 30-30 brass resized in a FL 7-30 die to ff my brass. I got perfect results every time.

JD338

 

[Johnly]

I use the same process that Ridge_Runner uses for forming 9.3x62 cases from 30-06 brass using a different (faster burning) flake powder that I have an abundance of and old oddball primers that I have no other use for. I've found that annealing the neck and shoulder area before forming helps with the process.

 

[Hunter26]

I'll second what Johnly said about annealing. With the 6.5-270 JDJ, it was a big change from the parent case and annealing was the only way to not lose a bunch. There's very little change from parent to formed case in the 338-06. Maybe just try forming a few and if you start losing cases, then anneal.