|
|
|
|
Joined: Dec 2002
Posts: 15,869
Campfire Ranger
|
Campfire Ranger
Joined: Dec 2002
Posts: 15,869 |
Look at the velocities. Someone needs a new chronograph, scale or both! He was going up by 1/2 grain increments with a 90+ gr case capacity, with a sample of 1 for each load. The Chronograph resluts could easily be valid. I've seen similar results with ladders in large cases. Thanks for the head's up! I've done load work-up with both the. 300 & the .338RUM. I normally don't use a chronograph that early in load development, haven't seen that velocity jump.
|
|
|
|
|
Joined: Nov 2011
Posts: 31,104 Likes: 5
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Nov 2011
Posts: 31,104 Likes: 5 |
Look at the velocities. Someone needs a new chronograph, scale or both! He was going up by 1/2 grain increments with a 90+ gr case capacity, with a sample of 1 for each load. The Chronograph resluts could easily be valid. I've seen similar results with ladders in large cases. Thanks for the head's up! I've done load work-up with both the. 300 & the .338RUM. I normally don't use a chronograph that early in load development, haven't seen that velocity jump. I helped a buddy of mine work up some loads for the 300RUM. The problem with shooting ladder is each load is just a sample of one. When you are loading 100+ grains of powder, one grain is not a very large gain, so sometimes with the small samples you it will appear your velocity will stall out for a few increment until the overall increase in powder overcomes the margin of error. If you repeated the test with 4-5 shots per load you would probably see a more normal progression.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
|
|
|
|
|
551 members (10gaugemag, 160user, 12344mag, 1Longbow, 1badf350, 1beaver_shooter, 62 invisible),
2,304
guests, and
1,159
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums81
Topics1,193,676
Posts18,513,311
Members74,010
| |
Most Online11,491
Jul 7th, 2023
|
|
|
|
|
|
