Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm, 130 grain HV, bullets from GS custom
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="ss8541" data-source="post: 20949" data-attributes="member: 104"><p>I just got back from the range after doing some test loads for my 7STW. I was not concerned with accuracy today or at least I didn't expect alot. I was just out to test pressure and velocity to find a starting point. I was using the 130 grain HV bullet from GS customs. This bullet has a advertized BC of .550, and it's terminal performance is similar to that of a Barnes X, but with better low velocity expansion. I loaded 2 rounds of each charge weight from 80 to 85 grains with RL-22, and IMR-7828. OAL was 3.65. I full length resized all brass (once fired, RP-7STW), and uniformed the primer pockets. I then out side neck turned down to .015, most brass cleaned up ninety percent, and my chamber isn't a tight neck so I stopped there. The real amazing thing is going to be the velocitys I achieved with a 27.5" barrel.</p><p></p><p>Temp- 80 to 85 degrees</p><p>Altittude - 4200</p><p></p><p>B]Powder charge/ RL-22[/B]</p><p>80- velocity 3720, 3737; two shots .27</p><p>81- vel- 3797, 3781; 2 shots touching</p><p>82- vel- 3836, 3850; 2 shots touching</p><p>83- vel- 3920, 3927; 2 shots touching, ejector marks present, primers flattened. I stopped there. I will pull the bullets from the higher powder charges with this powder.</p><p></p><p><strong>IMR-7828</strong></p><p>80- vel-3720, 3731, two shots .34</p><p>81- vel-3796, 3805, 2 shots touching into same group as 80 grains. At this point I just shot all other groups into AG.</p><p></p><p>82- vel- 3856, 3863</p><p>83- vel- 3916, 3920</p><p>84- vel- 3980, 3983</p><p>85- vel- 4074, 4068; ejecter marks showed up, but bolt did not stick at all. Primers where starting to flatten, but not crater. Temp was 85 and so was the ammo.</p><p> <strong>Another surprise!</strong></p><p>Excluding one horrible flinch flyer. The 11 shot aggregate measured <strong>.78</strong> with a decent amount of mirage present. I have measured case heads, and none have swollen. Not even in the real hot loads. I am really looking forward to a 3900fps load that shoots in the .2's. This isn't much of a test but I am excited.</p><p>Vince Foster</p></blockquote><p></p>
[QUOTE="ss8541, post: 20949, member: 104"] I just got back from the range after doing some test loads for my 7STW. I was not concerned with accuracy today or at least I didn't expect alot. I was just out to test pressure and velocity to find a starting point. I was using the 130 grain HV bullet from GS customs. This bullet has a advertized BC of .550, and it's terminal performance is similar to that of a Barnes X, but with better low velocity expansion. I loaded 2 rounds of each charge weight from 80 to 85 grains with RL-22, and IMR-7828. OAL was 3.65. I full length resized all brass (once fired, RP-7STW), and uniformed the primer pockets. I then out side neck turned down to .015, most brass cleaned up ninety percent, and my chamber isn't a tight neck so I stopped there. The real amazing thing is going to be the velocitys I achieved with a 27.5" barrel. Temp- 80 to 85 degrees Altittude - 4200 B]Powder charge/ RL-22[/B] 80- velocity 3720, 3737; two shots .27 81- vel- 3797, 3781; 2 shots touching 82- vel- 3836, 3850; 2 shots touching 83- vel- 3920, 3927; 2 shots touching, ejector marks present, primers flattened. I stopped there. I will pull the bullets from the higher powder charges with this powder. [B]IMR-7828[/B] 80- vel-3720, 3731, two shots .34 81- vel-3796, 3805, 2 shots touching into same group as 80 grains. At this point I just shot all other groups into AG. 82- vel- 3856, 3863 83- vel- 3916, 3920 84- vel- 3980, 3983 85- vel- 4074, 4068; ejecter marks showed up, but bolt did not stick at all. Primers where starting to flatten, but not crater. Temp was 85 and so was the ammo. [B]Another surprise![/B] Excluding one horrible flinch flyer. The 11 shot aggregate measured [B].78[/B] with a decent amount of mirage present. I have measured case heads, and none have swollen. Not even in the real hot loads. I am really looking forward to a 3900fps load that shoots in the .2's. This isn't much of a test but I am excited. Vince Foster [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm, 130 grain HV, bullets from GS custom
Top