Quote:
Originally Posted by ALS
I run 168 gn Sierra Match Kings with my M1A's. The 308 bolt actions are all loaded with 175 gn SMK's chronographed at 2650 fps.
The 300 Win Mag gets 190 gn SMK and set at 2900 fps. I've tried different loads with the 300 WinMag and 2900 fps gets me the best accuracy with the 190's. Now that is at 400 and out to 1,000 plus yards. On the other hand it is a tack driver at 100-300 yards with SMK 155 Palma's.
I haven't tried the 155's in the 308's yet.
The .308 Bolt Action 175 gn load is as follow.
Winchester Case
Federal 210 Primer
IMR 4064 power 42.2 grains
175 SMK
OAL Based on Chamber 2.78"
The .308 M1A's Load
Winchester case
Federal 210 Primer
IMR 4064 powder 42.0 grains
168 SMK
OAL 2.79
300 Winchester Magnum
Federal Case
Federal 215 Primer
71.5 grains of RE 22 Powder
Sierra 190 gn SMK
OAL 3.378
If your hand loading a Stoney Point Chamber Gauge is good investment.
Adjusting bullet seating is a must to control bullet jump to the lands.
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The ranges I actually am able to shoot is at a max of 200yds. The only other places that offer anything further (a max of 600yds around here) are a good $300+ membership, plus time investments. Which I cannot do.
Anyways, is measuring the velocities really important at these ranges (100-200)? Because first, I'm just starting off, so I have no chronograph, and secondly, I'm still learning the basics of loading.
Also the chamber gauge, how necessary is it? Am I able to do without it?