i used these when i was loading with blc2 but never with imr does any one have some good data for a starting point ?
26" barrel
1/10 twist
gas gun
26" barrel
1/10 twist
gas gun
imr 4064 and 155smk data 308
- Thread starter black_ump
- Start date
Re: imr 4064 and 155smk data
43gr. is a good starting charge w/SMK& Win. brass. That's assuming your speaking of .308 Win. Should get to 2700fps easy with 26"
43gr. is a good starting charge w/SMK& Win. brass. That's assuming your speaking of .308 Win. Should get to 2700fps easy with 26"
Re: imr 4064 and 155smk data
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wireman134</div><div class="ubbcode-body">43gr. is a good starting charge w/SMK& Win. brass. That's assuming your speaking of .308 Win. Should get to 2700fps easy with 26" </div></div>
sh!t i forgot to add that, yes 308 and ya i though i would start around 43 and load some 44 and 45 and some 42 and 41 and work in on the load based on those charges above, its how i did it for the 175 and found out that 41 was the best for me so
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wireman134</div><div class="ubbcode-body">43gr. is a good starting charge w/SMK& Win. brass. That's assuming your speaking of .308 Win. Should get to 2700fps easy with 26" </div></div>
sh!t i forgot to add that, yes 308 and ya i though i would start around 43 and load some 44 and 45 and some 42 and 41 and work in on the load based on those charges above, its how i did it for the 175 and found out that 41 was the best for me so
Re: imr 4064 and 155smk data
03/29/10 68 F FC Cases (old)
155-gr A-Max H2O capacity 58.33
4064 45.1 45.5
CCI 200 missed 2799.8
missed 2798.5
Primers missed 2806.3 Primers
squared 2744.7 2800.4 squared
2744.7 2799.1
avg 2744.70 2800.82
es 0 13.9
sd 0.00 3.09
03/29/10 68 F FC Cases (old)
155-gr A-Max H2O capacity 58.33
4064 45.1 45.5
CCI 200 missed 2799.8
missed 2798.5
Primers missed 2806.3 Primers
squared 2744.7 2800.4 squared
2744.7 2799.1
avg 2744.70 2800.82
es 0 13.9
sd 0.00 3.09
Re: imr 4064 and 155smk data
FA 63M Brass
155-gr SMK or Nosler??? H2O capacity 56.266
VARGET 46
WLR 2862.5 Did not eject
2873.5
2870.1 Primers
2847.6 not
2832.1 squared
avg 2857.16
es 41.4000000000001
sd 15.38
The A-Max run about 35 fps faster than SMKs/Noslers, in my 22-inch barrel.
Thought I had this posted, but the wireless was funky.
FA 63M Brass
155-gr SMK or Nosler??? H2O capacity 56.266
VARGET 46
WLR 2862.5 Did not eject
2873.5
2870.1 Primers
2847.6 not
2832.1 squared
avg 2857.16
es 41.4000000000001
sd 15.38
The A-Max run about 35 fps faster than SMKs/Noslers, in my 22-inch barrel.
Thought I had this posted, but the wireless was funky.
Re: imr 4064 and 155smk data
Aw heck, not everything was in the "Paste" memory. Wasn't intending to throw the Varget load in. I think they are jamming from needing trimmed...old batch of brass.
Nov. 21, 2009 test firing, 60 F.
Hornady 155-gr A-Max
FC Cases, fired capacity shown to be 55.8 gr H2O
(older lot, 3x fired for 43.5 & 43.9, 1x fired for 44.3)
Charge Chrono'd
43.5 2720.3
43.9 2745.8
44.3 2776.9
Nosler 155-gr CC
FC Cases, capacity 55.8 gr H2O
(older lot, 3x fired)
Charge Chrono'd
43.9 2735.6
44.3 2759.3
Later inspection of the cases showed that the batches of FC brass were NOT the same, the ones loaded with Noslers had more capacity.
03/29/10 68 F FC Cases (old)
155-gr A-Max H2O capacity 58.33
4064 45.1 45.5
CCI 200
missed 2799.8
missed 2798.5
Primers missed 2806.3 Primers
squared 2744.7 2800.4 squared
2744.7 2799.1
avg 2744.70 2800.82
es 0 13.9
sd 0.00 3.09
I just never could get consistent accuracy with any 155s (other than Hornady factory match ammo) out of my M1A.
Enjoy!
Aw heck, not everything was in the "Paste" memory. Wasn't intending to throw the Varget load in. I think they are jamming from needing trimmed...old batch of brass.
Nov. 21, 2009 test firing, 60 F.
Hornady 155-gr A-Max
FC Cases, fired capacity shown to be 55.8 gr H2O
(older lot, 3x fired for 43.5 & 43.9, 1x fired for 44.3)
Charge Chrono'd
43.5 2720.3
43.9 2745.8
44.3 2776.9
Nosler 155-gr CC
FC Cases, capacity 55.8 gr H2O
(older lot, 3x fired)
Charge Chrono'd
43.9 2735.6
44.3 2759.3
Later inspection of the cases showed that the batches of FC brass were NOT the same, the ones loaded with Noslers had more capacity.
03/29/10 68 F FC Cases (old)
155-gr A-Max H2O capacity 58.33
4064 45.1 45.5
CCI 200
missed 2799.8
missed 2798.5
Primers missed 2806.3 Primers
squared 2744.7 2800.4 squared
2744.7 2799.1
avg 2744.70 2800.82
es 0 13.9
sd 0.00 3.09
I just never could get consistent accuracy with any 155s (other than Hornady factory match ammo) out of my M1A.
Enjoy!
