178 AMAX and RL-15 Min and Max data

dormandefense

Sergeant
Full Member
Minuteman
Sep 28, 2012
259
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36
Aynor, SC
That's the combination I have readily available right now, and I'm trying to work up a load.

Any ideas of a good starting point? I'm running a Savage 10P .308 20" barrel.

Here's some previous load data:

PPU commercial match brass
IMR 4064 42.5 grains
smk 175s
COAL 2.80 (.005 off the lands)
CCI Large Rifle Primers
2575 fps

LC LR brass
IMR 4064 42 grains
AMAX 178
COAL 2.81
CCI Large RIfle Primers
Velocity unknown. ballistic calculation shows just south of 2600

these were both determined using the OCW test. These were mid nodes. Pressure signs started at around 43-43.5 with both loads

I'll be developing my next load with
LC LR brass
RL-15
amax 178
COAL 2.81
CCI large rifle primers.

Any help determining a min and max point for the rl-15 would be great. THANKS!
 
I'd use the same data you were using with IMR4064, the 2 powders are that close in burn rate, that's been my experience. For the 30-06 I use 50grs of either with 165/168s.
 
With the 178 bthp/178 amax I am currently using 43.2 relaoder 15, 210m primer, federal brass. Seating depth was .030 off. Coal for me is 2.840 and fit in a aics mag. I last bought 1500 of the bthps and weight variation was 177.1 to 178.4 with a couple around 175 and 176. This load worked exceptional in my savage and in my AO built rem 700. 1 hole groups. I also use 43gr 4064 and 43.5 of varget. The 43gr of 4064 worked good in the savage, not as good in the rem. The varget load I developed after I got rid of the savage but it shoots one hole groups out of the rem.
 
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Work up to this load.
One of my all time favorite loads is
44.3 grain RL15
178g amax, or 175g smk
Winchester brass
gm210m primers
Do not use military brass with this load case capacity is to low and you get high pressure in most guns.