trying 3 new loads, are they safe?

[three0three]

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

Information

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[USSR]

Loads 1 & 2 are fine. Load 3 with 49.0gr of IMR4895, maybe, maybe not. Why push it?

Don

[three0three]

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.

[three0three]

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.

[farmritch]

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

[browningautorifle]

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.

[three0three]

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

I have no chrono and I do not take you post as harm, I posted looking for any and all information I could get. thanks

[three0three]

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.

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.

[Alonzo]

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

[browningautorifle]

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!