A frustrating range day.p

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12 years 3 months ago - 12 years 3 months ago #40365 by Siscowet
Replied by Siscowet on topic A frustrating range day.p
No problem NF
Case(s) Lake City Also Winchester M80 kept them separate.
Bullet: Sierra Match King Boat Tailed Hollow point 175 gr
Bullet: Sierra Match King Boat Tailed Hollow Point 168gr
Powder charge( both) 42 gr.
Powder: Reloader 15 Alliant
Primer: Winchester large rifle
COL-(all) 2.80

On the 175's flattened primer was more pronounced on the M80 brass than the Lake City.
Last edit: 12 years 3 months ago by Siscowet.

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12 years 3 months ago #40367 by NightForce
Replied by NightForce on topic A frustrating range day.p
Sisco,

Here is the results after imputing the information you listed. The 168 shows no signs of high pressure. When I substitute the heavier 175 tip with the same load, the chamber pressure creeps into the "caution" area....

168 Grain

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175 Grain

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12 years 3 months ago #40371 by Siscowet
Replied by Siscowet on topic A frustrating range day.p
Night Force thank you that is a big help. Based on that I think I will pull the bullets, go down to 41 grains and try that. Could you by chance run that again with a powder load of 41 grs of RE15? That would be a big help. Thanks again.

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12 years 3 months ago #40373 by NightForce
Replied by NightForce on topic A frustrating range day.p

Siscowet wrote: Night Force thank you that is a big help. Based on that I think I will pull the bullets, go down to 41 grains and try that. Could you by chance run that again with a powder load of 41 grs of RE15? That would be a big help. Thanks again.


Of course. I'll rerun the program using 41 grains with both bullets...

Coming right up! :twothumbs:

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12 years 3 months ago #40375 by NightForce
Replied by NightForce on topic A frustrating range day.p
Here you go!

168-41

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175-41

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12 years 3 months ago - 12 years 3 months ago #40381 by Siscowet
Replied by Siscowet on topic A frustrating range day.p
Night Force, you da Man! :twothumbs:
41 gr looks to be right where I want to be for the 175's. I am leaving the 168's alone.. Thanks again, will report, hopefully in the near future. Need to spend a night pulling 48 bullets!
:banghead:
Last edit: 12 years 3 months ago by Siscowet.

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12 years 3 months ago - 12 years 3 months ago #40450 by Dabu
Replied by Dabu on topic A frustrating range day.p
:woohoo: :woohoo: :woohoo: :woohoo: WHOA! what program is that?

NightForce wrote: Sisco,

Here is the results after imputing the information you listed. The 168 shows no signs of high pressure. When I substitute the heavier 175 tip with the same load, the chamber pressure creeps into the "caution" area....

168 Grain

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175 Grain

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Last edit: 12 years 3 months ago by Dabu.

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12 years 3 months ago #40457 by Siscowet
Replied by Siscowet on topic A frustrating range day.p
Dabu, check out NightForce's "Quick Load" thread.
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12 years 3 months ago #40458 by MrMarty51
Replied by MrMarty51 on topic A frustrating range day.p

Siscowet wrote:

jdizzle3id wrote: Siscowet,
When you say "factory m118lr", is that the same thing as LCAAP "xm118lr" 175gr? I ask because those velocity numbers seem way higher than I was getting out of my ar10t 20" which averaged 2585 (20ft front of muzzle).

That was what I meant. And yes it was distubingly high. I am going to go online and see what it should be. The other thoght is that the conditions were skewing the chronograph readings, as I did get a lot of "err" messages.

Without getting out the book, 2750 fps seems to come to mind.
Those are some nice groups considering what You were dealing with.
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12 years 3 months ago #40468 by NightForce
Replied by NightForce on topic A frustrating range day.p

Dabu wrote: :woohoo: :woohoo: :woohoo: :woohoo: WHOA! what program is that?


That program my friend is called QuickLOAD and it is impressive... I started a link on it so give her a click and see what it's all about...

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