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case: mixed commercial
primer: CCI LRM (all i could find)
powder: IMR 4895
projectile: 165gr. soft point
load 1 contains 47 grains of powder
load 2 contains 48 grains of powder
load 3 xontains 49 grains of powder
Before I go try these out, I just want to be sure they are safe to fire from a M1917. Also, any of you guys running anything similar?
thanks
Loads 1 & 2 are fine. Load 3 with 49.0gr of IMR4895, maybe, maybe not. Why push it?
Don
lee says the max is 52gr, and Lyman says 50 gr. max. at the time I loaded them 49gr. seemed pretty safe but I wanted to double check with some of the experts here. After I posted here I kept on running through sites and it seems to be everyone stops at 48gr. as the max safe load. maybe I'll dismantle the 49gr. loads and try some 1/10 recipes.Quote:
Originally Posted by USSR
well, I actually took out 5 loads today with 5 rounds of each at 25 yards here is what i got......
47gr. 3.5" group
47.5 gr 2" group
48gr. 3" group
48.5gr.1" group
49gr. 4" group
the winner is 48.5 grains
next I will try the winning load at 100 yards and maybe fine tune it from there.
The question is...................
What speed are they running at?
We know 4895 is a good 30-06,.308,.223 powder
But you know nothing if you don't chronograph them.
There has to be a baseline somewhere and as far as safety goes how they group really is not it.
Keep in mind also as tempature goes up so will Speed & Pressure
Not trying to be mean here but you are making a potental BOMB is it not worth a bit more info than how it groups?
My .02
Farmritch
You men are aware that the Mauser action of the M17 is the strongest action available? These are the guns thet are turned into .458 Win. No re heat treating required. If the reloading books recommend a load you can bet they are a couple of grains below max to be safe. Follow the professionals not hear say.
I have no chrono and I do not take you post as harm, I posted looking for any and all information I could get. thanksQuote:
Originally Posted by farmritch
yeah, I have seen post about how strong the actions are and its amazing a lot of guys like to turn them into 375 H&H and thats a pretty tough round.Quote:
Originally Posted by browningautorifle
Just a suggestion...segregate your brass to like makers...ie, all Winchester, or Federal, etc.
I had incredible success by doing this, and even went to the extreme of weighing each case. Accuracy remained consistent throughout all my testing over the years by following this technique. Though finding a good quality maker is difficult. I use nickel plated Federal 30-06 in my 1903/1922 sporter, and Federal Brass in the Garand, Winchester in the P-17 and R-P in the M1903 milspecs.
Cheers
Alonzo's absolutely correct! Not just for 1917 rifles but ALL accuracy depends on it. That's a fact I can attest to. Like brass is mandatory, not just same headstamp but same lot number if it's possible!
I agree with farmrich and alonzo. The use of a chronograph will give you so much more information to use in your selection process as far as what the muzzle velocity is running and what the standard deviation of a particular load actually is. Usually the lower the standard deviation, the more uniform the load; sometimes the lowest standard deviation results do not produce the best groups on paper, but most of the time they do. Brass segregation will also improve uniformity, and if you use the same brand of brass it can make a difference. Another thing to keep in mind with brass is that military brass is generally thicker, and pressures will therefore be higher; if you first test loads using military brass and there are no signs of excessive pressure,the same load will be safe in commercial brass too.
Safety, uniformity, accuracy, and fun are what it's all about. Good shooting!
I would go with a slower powder out of that bolt and take advantage of the case capacity of the 30-06 round. I like 4064 powder for my 165 loads out of my garands.