Normally I'd do this at 530 yds but had a free day and wanted to stay local. I've been having really good results with the 147's and h4350 in my Creedmoor. On a whim I decided to try some Reloder 16. I couldn't find any published data so I called Alliant. They didn't have 147 data, but for the 140/143 eld, they gave me 39.6-42-6. I forgot to ask what their velocities were.
Load
147 ELd @2.177 (.020 off the lands)
Virgin Lapua brass
Reloder 16 40-42 grains.
CCi 450
No sorting or prepping of any component, except for running the brass over a mandrel.
The gun
AIAW, 6.5 CM (standard firing pin)
23.5" Broughton 5c
NF 4-16 ATACR
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Shot at 109 yds, prone/bipod/rear bag. Data is on the target. Not sure what happened to the third shot for 41 gr, as it felt fine. Its so consistent everywhere else, it must have been me though, but whatever. No sight adjustments, they started high and I let them crawl up the page. Here's every round fired, from the cold bore (5 foulers) on. I also didn't clean out the several hundred rounds worth of 147/h4350 I've fired recently.
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Pretty sure theres more speed here, but I'll need to test that some more. This gun works really well in the high 26xx's, and brass should last forever. Hardly a hint of pressure anywhere, and no sticky bolt. I took some case head expansion measurements. The first three charge weights expanded .0008", 41.5 gr was .0009", and 42gr was .0011"
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[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20171213\/95853ba4f90ff6ee384ef41ff3482a71.jpg"}[/IMG2]
Load
147 ELd @2.177 (.020 off the lands)
Virgin Lapua brass
Reloder 16 40-42 grains.
CCi 450
No sorting or prepping of any component, except for running the brass over a mandrel.
The gun
AIAW, 6.5 CM (standard firing pin)
23.5" Broughton 5c
NF 4-16 ATACR
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20171212\/1fe2ca084df8ce48c818059287ea5570.jpg"}[/IMG2]
Shot at 109 yds, prone/bipod/rear bag. Data is on the target. Not sure what happened to the third shot for 41 gr, as it felt fine. Its so consistent everywhere else, it must have been me though, but whatever. No sight adjustments, they started high and I let them crawl up the page. Here's every round fired, from the cold bore (5 foulers) on. I also didn't clean out the several hundred rounds worth of 147/h4350 I've fired recently.
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20171213\/2ab41488c83eeefd860736abea3d64f5.jpg"}[/IMG2]
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20171213\/9319ade47881ca61cec7862885f33b2c.jpg"}[/IMG2]
Pretty sure theres more speed here, but I'll need to test that some more. This gun works really well in the high 26xx's, and brass should last forever. Hardly a hint of pressure anywhere, and no sticky bolt. I took some case head expansion measurements. The first three charge weights expanded .0008", 41.5 gr was .0009", and 42gr was .0011"
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/uploads.tapatalk-cdn.com\/20171213\/d20253d135ee2cd46566f5a975895f8d.jpg"}[/IMG2]
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