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9/22/2017 12:11:25 AM
Posted: 1/10/2006 11:37:26 AM EDT
Buddy of mine loaded me some loads for my M1A. 147 gr. bullets over 44, 44.4 and 46 gr. of IMR 4064 and CCI #34 primers in Win. commercial brass. What say ye? I'm trying to tweek more accuracy out of my Bush Rifle but want to be safe, too. Any suggestions? TIA as always.
Link Posted: 1/10/2006 12:10:40 PM EDT
Without checking my Sierra manual, I routinely shoot 42 gr of IMR 4064 to push a 168 match bullet with no ill effect and good precision.
Link Posted: 1/10/2006 6:39:01 PM EDT
[Last Edit: 1/10/2006 6:40:35 PM EDT by Dano523]
45 grains is list as max load with the 150 grain bullet in the IMR data.


.308" DIA.; 24" BBL.; 2.755" C.O.L.
IMR 3031 42.5 2750 57000
IMR 4064 45.0c 2840 58000
IMR 4895 45.5 2880 59000
IMR 4320 45.8 2830 59000
Link Posted: 1/11/2006 3:37:21 AM EDT
[Last Edit: 1/11/2006 8:15:01 AM EDT by peasant]
So, are these bolt gun loads or are they M1(.308) and M1A suitable???
Link Posted: 1/11/2006 6:03:25 AM EDT
Go ask your buddy what data he was using for these loads. Could be that he has data specific for the rem cases and the CCI primers that shows the 46 grain load as being safe (still think that it is over the top or a max load).

As for what the loads are for, haven't a clue since you should always reduce the powder 10% and slowly work up the loads in the rifle looking for signs of overpressure, and accuracy.
Link Posted: 1/11/2006 10:46:23 AM EDT
Those loads sound too hot to me.

Link Posted: 1/11/2006 11:00:17 AM EDT
yup.. too hot for me too.. I usually use 42.0gr of H4895, IMR4895, of IMR4064 with the 147gr FMJ bullet...especially if it is for blasting and plinking purposes.. there is no need for your loads to be at max or above.. just makes for more wear and tear on you and your rifle.. not to mention your pocket book because of the extra powder you are using.....
Link Posted: 1/11/2006 1:58:21 PM EDT
[Last Edit: 1/11/2006 1:58:52 PM EDT by markmcjunkins]
For 147 gr bullets the load sounds good.

Look up the loads on line.
Find out what it means to have pressure signs and work your way up.
I've started with 40 gr. of Varget pushing 168s.......

Link Posted: 1/14/2006 9:08:32 AM EDT
45.5 gr IMR 4064 is listed as max in the Sierra manual.

I would also make sure the cases were full length resized.
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