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Topic: Alliant Powder 6.5 Creedmoor Reloading Data (Read 19014 times) previous topic - next topic

Re: Alliant Powder 6.5 Creedmoor Reloading Data

Reply #90
I'm real.

To me it's kind of obvious, if the rifle is moving before the shot fires, I'll call it.  I don't need to see where the bullet hits.

Caffeine messes with my aim more than my trigger control, that's just a bad day shooting.

As much as I want that 5:00 am pick me up before I head out on the 2.5-3 hour trip to the 1,000 yard range, I resist.

One of these days I'm going to get a motorhome so I can drive the night before and wake up at the range.

 Life without coffee is like what I imagine the Great Appocolips will be.
 Shooting a small group is not reason enough for me to skip coffee. Besides, the pounding headache I would get would no doubt make my shooting even worse.
If your going to be a Bush Alaskan You need a perfect winter rifle. The Ruger M77 Hawkeye SS in 6.5 Creedmoor is mine.<br>You are being watched.

Re: Alliant Powder 6.5 Creedmoor Reloading Data

Reply #91
I'm not an addict, I can stop any time (as I drink a caffeinated beverage).

Re: Alliant Powder 6.5 Creedmoor Reloading Data

Reply #92
Finally was able to load up some RL16.
Rifle is AIAX-SA 24" 6.5CM
140gr ELD-M
Winchester LRP
1X Fires Hornady Brass (from 2 diff rifles)
FL bushing sized 0.288 neck (but I used carbide expander, so kinda ruins the 0.288 neck tension)
60-70°F
~2800ft Altitude
Don't have DA or Atmospheric Pressure.
A few ejector marks but nothing extreme.  Primers a little flattened.
Loaded to 2.800"

41.5gr
Stats - Average   2746.32
Stats - Highest   2764
Stats - Lowest   2736.66
Stats - Ext. Spread   27.34
Stats - Std. Dev   10.93

42.0gr
Stats - Average   2783.86
Stats - Highest   2814.1
Stats - Lowest   2764.66
Stats - Ext. Spread   49.43
Stats - Std. Dev   20.76

42.5gr
Stats - Average   2822.86
Stats - Highest   2851.51
Stats - Lowest   2803.86
Stats - Ext. Spread   47.64
Stats - Std. Dev   23.87

43.0gr
Stats - Average   2863.02
Stats - Highest   2869.15
Stats - Lowest   2855.79
Stats - Ext. Spread   13.36
Stats - Std. Dev   5.69


Re: Alliant Powder 6.5 Creedmoor Reloading Data

Reply #93
Was able to get out last Friday and test out the BR2 primers.

4X fired Norma (these were all fireformed and headspace measure consistently @ 1.5365, bumped to 1.5360)
CCI-BR2 primers, Alliant RL16

42.0
Stats - Average   2821.02
Stats - Highest   2841.07
Stats - Lowest   2809.89
Stats - Ext. Spread   31.18
Stats - Std. Dev   13.62
5-shots

42.2
Stats - Average   2835.97
Stats - Highest   2849.18
Stats - Lowest   2828.74
Stats - Ext. Spread   20.44
Stats - Std. Dev   7.73
5-shots

42.4
Stats - Average   2855.72
Stats - Highest   2864.88
Stats - Lowest   2846.76
Stats - Ext. Spread   18.11
Stats - Std. Dev   7.96
4-shots (recorded)

42.6
Stats - Average   2856.83
Stats - Highest   2871.09
Stats - Lowest   2845.85
Stats - Ext. Spread   25.23
Stats - Std. Dev   10.47
5-shots

42.8
Stats - Average   2866.12
Stats - Highest   2871.74
Stats - Lowest   2858.55
Stats - Ext. Spread   13.19
Stats - Std. Dev   6.81
3-shots

ES and SD were much more consistent, i'm sure the BR2's helped. With Norma brass and WLRP it was better than Hornady and WLRP, but Norma and BR2 combination seemed most consistent.

Next batch I'll check out 42.2-42.6gr. Hopefully my AMP annealer will ship soon (hopefully in by June). hope it'll help bring my ES/SD down with more consistent neck tension.

Re: Alliant Powder 6.5 Creedmoor Reloading Data

Reply #94
I'm using RL17 with 39.2 gr on a Berger 130 gr Hunter.  The brass is Lapua and the primers are CCI Small Rifle.  This was the second trip to the range and am starting sorta low and will work up until the HMR 14 starts liking it.

Some folks have commented that RL16 seems to be not unstable, but some type of unexpected behavior at 41 +.  Have you noticed this?
In adversity remember to keep an even mind, train hard and fight easy.
                            Horace and Alexander Suvorov

Re: Alliant Powder 6.5 Creedmoor Reloading Data

Reply #95
I'm using RL17 with 39.2 gr on a Berger 130 gr Hunter.  The brass is Lapua and the primers are CCI Small Rifle.  This was the second trip to the range and am starting sorta low and will work up until the HMR 14 starts liking it.

Some folks have commented that RL16 seems to be not unstable, but some type of unexpected behavior at 41 +.  Have you noticed this?

'stable' or 'unstsable'

If you're referring to the previous poster about RL16 and he had pressure sign/instability issues...i haven't found any issues. 

started @ 41.5-43.0 grains in 0.5 grain increments, and only a few cases had ejector marks,  no cratering with WLRP.  But somewhat flattened primers, nothing to extreme.

with the Norma brass and BR2 primers, i started to get very slight cratering @ 42.8gr.  Some ejector marks, primers do not looked overly flattened.  possibly lot to lot variance.