That's the answer I was looking for. Did you crimp, even though the cannelure was exposed?
Reloading 7.62x54R
- Thread starter cam1936
- Start date
We didn't crimp, ever.
But to tell the Truth, the Whole Truth and Nuthin' But The Truth, we fireofmred our brass and then neck-sized only with a .308W die: gave us nice, tight necks and only a couple of thou extra squish. Brass required annealing with this treatment, though, after about half dozen firings. Sizing with the proper dies, likely you will want to anneal after 8 or 10 firings. Keep your pressures sane and there is no reason you shouldn't get 15 firings out of your brass: MNs lock up nice and tight and the actions are not the least bit springy. The Brass Life King is still the Ross, though!
BTW, we got excellent accuracy with 4064 and, in the MN, also with 4350. Can't remember the exact charges, so won't say anything about them.
Hope this helps.
.
But to tell the Truth, the Whole Truth and Nuthin' But The Truth, we fireofmred our brass and then neck-sized only with a .308W die: gave us nice, tight necks and only a couple of thou extra squish. Brass required annealing with this treatment, though, after about half dozen firings. Sizing with the proper dies, likely you will want to anneal after 8 or 10 firings. Keep your pressures sane and there is no reason you shouldn't get 15 firings out of your brass: MNs lock up nice and tight and the actions are not the least bit springy. The Brass Life King is still the Ross, though!
BTW, we got excellent accuracy with 4064 and, in the MN, also with 4350. Can't remember the exact charges, so won't say anything about them.
Hope this helps.
.
The Honady 174 grain HPBT is actually .3105" not .312. In the Hornady book it lists the FMJBT with the RN which is .312", but if you look at a box of the FMJBT it says .3105".
I shot 5 round groups at 100m (109 yards). 3 groups of each load.
150 grain Speer SPs (.311") averaged 4"
174 grain Hornady HPBT (.3105") averaged 4.5"
174 grain Hornady RN (.312") averaged 3"
It's shooting pretty good for a 70 year old battle rifle and open sights. I'm going to be using the 174 grain RN for my hunting load and the 174 grain FMJBT as my service rifle load (when I don't feel like shooting the AR-15). The bolt is smooth and I can shoot with this thing so I'm pretty excited. Did a practice "mad minute" at 100m in the sitting position. I got 13 shots off and 11 hits on a 18"x18" target with no practice. These groups and my shooting may seem ####ty on the internet, but I was pretty impressed with the real world results of this thing.
Irksome as it may sound, it depends on which rifle and which bore you are talking about. I have a M27 MN with a nice Tikka barrel which shoots a variety of .308 dia bullets extremely well. Best propellants in it are IMR4064 or IMR4320 with Lapua brass. Best load is a 168gr Sierra/46gr IMR4320/OAL 2.975/no crimp .308 offers the added bonus of a wider selection of bullets to play with.
Bore dimensions do vary between the various models, so it pays to check before shooting-or talking.
The only thing I see on the Hornady website are the 150 and 174 grn Interlocks... and the .3105 FMJBT bullets. Nothing I see anywhere indicates that .312 match bullets exist.
Where can I find these .312 match bullets?
There is a couple of site sponcers that carry them. I recieved mine from mystic precision. A great dealer to do buisness with. I just checked Hornady website and you are correct in that they are not listed. I hope they have not dropped them from production. The Sierra 174's more pricey and harder to obtain. A pm. to mystic will tell if they are still available.
