Request for Recipe (.308), also info to share

[rksimple]

Originally Posted by Jicko

Yeah.... that's the reason why I want to stay @ 43gr w/ 2700fps (.8-1MOA).... but seemingly.... the groups w/ 45gr @ 2800fps is better....

And... YES, I think my factory chamber is large and long... I think I can seat to 2.9 and still hasn't hit the land....

I was testing @ 55-65deg this past wkend....

How many groups of how many rounds did you fire? Enough to be statistically relevant?

[ar15barrels]

Originally Posted by Jicko

PS. how much faster will they be... when it is 100deg..... when I clocked 2800 @ 65deg?

Quickload simulations...
175 SMK
2.800 OAL
24" barrel

65 degrees
43gr RL15
2610 FPS
51605 PSI
45gr RL15
2723 FPS
59478 PSI

100 degrees
43gr RL15
2655 FPS
55033 PSI
45gr RL15
2766 FPS
63420 PSI

[Jicko]

I will work on my loads in the 43gr-ish range. Thanks Randall, 45gr-ish just look too dangerous.

[Darklyte27]

what recipe are you using now?

[Jicko]

Originally Posted by Darklyte27

what recipe are you using now?

Lapua Brass
175 SMK
FED210M
RL15 43.0gr
COAL: 2.85

~ 2700fps

[Darklyte27]

thanks,

how come you are using federal primers?
I only have CCI #34s right now, is this too much of a primer for these kind of loads?
Should I use benchrest primers? standard?

[Jicko]

Originally Posted by Darklyte27

thanks,

how come you are using federal primers?
I only have CCI #34s right now, is this too much of a primer for these kind of loads?
Should I use benchrest primers? standard?

FED210M produced the tightest MV ES/SD for me.

#34 is mil primers, designed for semi-automatic... if you got nothing else, sure you CAN use it..... but it would be of your best interest to get like all different primers and just try them out urself.... IF you are trying to me "precision loads".....

WLR seems to be good to me too, I am planning to do another round of testings with primers soon....

In my previous experiments, FED210 is along the line with CCI #200, FED210M is along the line with CCI #BR2..... and the match-grade/BR-grade is 50% tighter than the regular.....

[Darklyte27]

Ordered 500 rds of the SMK 175s from midway, its on sale! 133$ per 500

[crowbar]

Originally Posted by Nom de Guerre

Can anyone explain why both 175 SMK and 155 Scenar apparently are better suited for longer ranges out to 1K yards than the 168 SMK? I'm assuming this is because they both are more easily loaded to stay supersonic at 1K yds, but what confuses me is that the 168 SMK is obviously between the weights of the 175 and the 155, so what makes it harder to keep that bullet supersonic out to 1K?

I believe the Sierra 168 was originally designed (late 50's ?) for 300 meter shooting and was first called the "International". Match and service rifle shooters found it hammered out to 600 yards, and I think it will do well out to ~850 yards or so. After that it goes transonic and, more often than not, enters the 1,000 yard target broadside; when it manages to connect from the long line... Maybe a 300 Win mag could push it fast enough, but there are better choices for > 600 yards.

As for powders, I've only worn out half as many Palma barrels as another8 in the last three years, but Varget is the way to go. I have shot the same load (47.0 Varget, 155SMK, 210M, Win brass) from 17 degrees to near 105 and have no pressure or velocity concerns. Besides, Varget is less expensive than RL17....

I used my trusty Brown & Sharpe micrometer to measure diameters of the large rifle primers I have on hand and found the following:
CCI 200: .2106, WLR: .2100, 210M: .2105, and some old Winchester No. 115: .2104. I'm tld the Russian / Wolf primers give excellent results and fit snugly. I had to quit using WLR's for Palma because they got too loose, too fast. The mic showed me why. I use the WLR's in my .30-30 now.

[pottymouth310]

I know this has probably been asked many times before but my friends keep asking me this and I don't have a logical answer for them:

"Whats the difference between .308 & 7.62x51 Nato" I heard they're the same but you shouldn't shoot both out of the same rilfe?
confusing???

[ar15barrels]

Originally Posted by pottymouth310

"Whats the difference between .308 & 7.62x51 Nato" I heard they're the same but you shouldn't shoot both out of the same rilfe?

308 is higher pressure.

[slappomatt]

Ok, thats alot of info to sort through. looks like good stuff though. what about this.

I have a saiga 308 and I'm building a AR-10T soon. I also have several friends who have AR-10T's in the works and a couple freinds with M1A socom's.

what would you recomend for us for plinking ammo.

#1 concern would be cost.
#2 would be accuracy to maybe 200 yrds
#3 would be low recoil.

also being as I also load .223 I would like to stick to ramshot TAC as powder as it seems to be a decent all around powder.

any idea's?

[Whitesmoke]

Originally Posted by slappomatt

Ok, thats alot of info to sort through. looks like good stuff though. what about this.

I have a saiga 308 and I'm building a AR-10T soon. I also have several friends who have AR-10T's in the works and a couple freinds with M1A socom's.

what would you recomend for us for plinking ammo.

#1 concern would be cost.
#2 would be accuracy to maybe 200 yrds
#3 would be low recoil.

also being as I also load .223 I would like to stick to ramshot TAC as powder as it seems to be a decent all around powder.

any idea's?

Military brass...any bullet is fine at 200 yards (pulled military bullets, or bulk 150 gr bullets). TAC should be fine....start at min loads and work up.

[Darklyte27]

just for the record you guys dont crimp match type ammo right?
ive heard no crimp = better accuracy.

[rksimple]

Don't crimp anything.

[ar15barrels]

Originally Posted by rksimple

Don't crimp anything.

I crimp my blasting ammo.

[rksimple]

Originally Posted by ar15barrels

I crimp my blasting ammo.

If I were using the same hodge-podge of who-knows-how-many-times-fired brass as you, I think I might too!

[Darklyte27]

Is COAL center overall length? any diff from OAL?

[ar15barrels]

Originally Posted by Darklyte27

Is COAL center overall length? any diff from OAL?

Cartridge
Over
All
Length

[Darklyte27]

Im currently using Federal 308 brass, would there be any problem if I used nato WCC brass? Nato brass is thicker correct and therefore the powder charge should be less?

[rksimple]

Originally Posted by Darklyte27

Im currently using Federal 308 brass, would there be any problem if I used nato WCC brass? Nato brass is thicker correct and therefore the powder charge should be less?

FC brass is a little on the thick side. Not as thick as military, but thicker than say remmy or win. Drop your charge a grain or two and work back up. You'll notice the military stuff lasts WAYYY longer than the Federal junk. And your ES and SD will likely be the same.

[pb_m3]

My most accurate load is:

175SMK
43.4gr RE-15
WLR Primer
Hornady Match brass
Trim to 2.005
2.80 COAL 2.225 OOAL
Light taper crimp

Gives me .287 to .353 groups all day long.

[pb_m3]

Oh yeah,

AIAW 26" .308 1-12 Twist.

573 Rds total.

[ripcurlksm]

Any reloaders in LA/OC/SD willing to sell some .308 reloads to an old Eagle Scout for plinking?

[ar15barrels]

Originally Posted by ripcurlksm

Any reloaders in LA/OC/SD willing to sell some .308 reloads to an old Eagle Scout for plinking?

Making ammo for sale without an 06FFL would be illegal.

[Jicko]

Originally Posted by ar15barrels

Making ammo for sale without an 06FFL would be illegal.

ripcurlksm:

+1.... so please don't ask again...

and it has NOTHING to do with "Request for Recipe (.308), also info to share".... so.... stop crapping the thread!!

[ripcurlksm]

[hamster]

Anyone have an idea where I should start for my Rem700? It's the SPS tactical with a 1:12 twist and a 20" barrel. I did lots of reading and for some reason I'm remembering a 155 grain bullet goes well with a 1:12 twist. (I know it has more to do with the length of the bullet, but that's what I remember for some reason.) Anyways, do I just start at a popular recipe and see what happens, or is there a particular direction I should head? Please be kind, I'm still learning.

[ar15barrels]

Originally Posted by hamster

Anyone have an idea where I should start for my Rem700? It's the SPS tactical with a 1:12 twist and a 20" barrel. I did lots of reading and for some reason I'm remembering a 155 grain bullet goes well with a 1:12 twist. (I know it has more to do with the length of the bullet, but that's what I remember for some reason.) Anyways, do I just start at a popular recipe and see what happens, or is there a particular direction I should head? Please be kind, I'm still learning.

If you have some federal brass, start with 46gr of Varget under a 155 SMK or 45gr under a 155 Scenar.
Work up from there.

[hamster]

Originally Posted by ar15barrels

If you have some federal brass, start with 46gr of Varget under a 155 SMK or 45gr under a 155 Scenar.
Work up from there.

Thank you very much, sir. I have about 60 federal brass and about 300 Lithuanian NATO brass, if I were to use those would I subtract 1.5grains?

[ar15barrels]

Originally Posted by hamster

Thank you very much, sir. I have about 60 federal brass and about 300 Lithuanian NATO brass, if I were to use those would I subtract 1.5grains?

I don't know.
You would have to size them and compare case volumes.
Leave a fired primer in one of each cases.
Size the cases without a decapping pin.
Weigh each case and note the empty weight.
Then fill each case with water to the top of the neck.
Now note the difference in weight between dry and wet for each case.
That's your case capacity in grains of water.
Post what you find.

[hamster]

Originally Posted by ar15barrels

I don't know.
You would have to size them and compare case volumes.
Leave a fired primer in one of each cases.
Size the cases without a decapping pin.
Weigh each case and note the empty weight.
Then fill each case with water to the top of the neck.
Now note the difference in weight between dry and wet for each case.
That's your case capacity in grains of water.
Post what you find.

Wilco. Lucky for me being a scientist, I have access to Micro-pipettes and syringes that can measure volumes very accurately. Now I'm just waiting on Midway to deliver my goods.

[ar15barrels]

Originally Posted by hamster

Wilco. Lucky for me being a scientist, I have access to Micro-pipettes and syringes that can measure volumes very accurately. Now I'm just waiting on Midway to deliver my goods.

As you are filling the cases with a known volume of fluid, make sure you tap on the case to get all the air bubbles out.
People sometimes miss that and get erroneous measurements as a result.

[GunNut]

Originally Posted by Jicko

You can find all pricing(rough) info on www.powdervalleyinc.com

Do the math yourself. All depends on what you use, new Lapua brass is $0.50 each but you can get N-number of reloads out of it.

Roughly, $.35-.40 each if you have brass.
- premium bullet (eg 175SMK) ~$.25
- powder ~$.10
- primer ~$.02

Can get down below $.30 each if you use cheaper bullets (168Nosler)

I have an Armalite AR10/20''barrel A2. A friend gave me 500 nato brass 7.62x51. I've been loading it for about .35 ea.
Then I discoverd the 7.62X54R CZ Steel case,corrosive berdain primed. I just wanted the bullets. Got a few and pulled them down. they are a 147gr. bullet with 46.2gr. of a stick powder..? Looked like a modern smokless powder. Ammo was made in 1986. So, I started with 42gr of this mystery powder and worked up to 43gr using the same bullets. Thats as far as I'm going. I'm about to run out of case space and they are as hot or a little hotter than federal factory loads. So now I'm loading my 7.62x51 "308" for about .21 ea.

[hamster]

Originally Posted by ar15barrels

If you have some federal brass, start with 46gr of Varget under a 155 SMK or 45gr under a 155 Scenar.
Work up from there.

I just went to Turners to start buying reloading ingredients and they dont have any Varget in stock. I was thinking of buying some Alliant Reloader 15 since I've seen quite a few loads using this powder. Is this powder recommended for a 20" barrel w/ 1:12 twist?

[Jicko]

Originally Posted by hamster

I just went to Turners to start buying reloading ingredients and they dont have any Varget in stock. I was thinking of buying some Alliant Reloader 15 since I've seen quite a few loads using this powder. Is this powder recommended for a 20" barrel w/ 1:12 twist?

I personally use RL15. And RL15 is also the powder that is in LC M118LR.

[aklon]

Geez, after reading all this I feel like a real pedestrian with my 39.5 grs. of IMR 3031 (Winchester brass, WLR primers) pushing the 168 SMK.

[Darklyte27]

Originally Posted by aklon

Geez, after reading all this I feel like a real pedestrian with my 39.5 grs. of IMR 3031 (Winchester brass, WLR primers) pushing the 168 SMK.

what kind of results are you getting?

[Darklyte27]

Originally Posted by Jicko

Lapua Brass
175 SMK
FED210M
RL15 43.0gr
COAL: 2.85

~ 2700fps

Just shot some of my reloads this Sunday March 8th 2009.
100 yrds around 65*F
wind was variable from 5-8mph my estimate from right to left.
first 3 rds

WCC brass once fired
175 SMK
CCI #41 military primer *all I got until i get my BR and #400 this week*
Varget 42.5
COAL 2.83

next 4 shots
same as above except FC brass once fired
Should I now adjust the scope turrets as it is now as zero?

[Darklyte27]

Hey Hamster, what was your measurements with the Lith Brass? I got the same stuff..