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
Hunting
Long Range Hunting & Shooting
Vertical stringing
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="Joefrazell" data-source="post: 1848699" data-attributes="member: 101262"><p>Alright, went back out today and this is what I found. I shot 3 shots of 74.5 grains and 3 shots of 76.5 gr. over the magneto speed to check out my velocity. I know that's way to small of a sample but I think it worked. </p><p></p><p>74.5 gr. 2882fps, 2855, 2881 .863" wide and 1.056 tall</p><p>76.5 gr. 2980, 2973, 3004 .638 wide and .715 tall</p><p></p><p>So these are pretty huge extreme spreads especially for these small of batches. I can only imagine what a 10 shot test would show. </p><p></p><p>When I did my original ladder test the group was .8 wide and 1.6 tall</p><p></p><p>Here's what the groups have done at 100 yrds all 4 shot groups except 77 gr. was 3 shots as I was getting a slight heavy bolt. </p><p>74 gr .617 wide 1.1 tall</p><p>74.5 .294 wide .362 tall</p><p>75 .211 wide 1.05" tall</p><p>75.5 .297 wide .936 tall</p><p>76 .674 wide 1.54 tall</p><p>76.5 .619 wide 1.467 tall</p><p>77 .290 wide 1.4 tall</p><p></p><p>I took it out to 360 yards today and shot these groups</p><p>74.5 3 shots 1.352 wide and 3.928 tall</p><p>76.5 1.754 wide and 5.572" tall</p><p></p><p>So what I'm thinking is my sd and es is just too much for this cartridge and barrel length/ profile. I think it's getting alot of barrel whip and is really showing up on the vertical with these velocity variations.</p><p></p><p> Also, it's important to note that I shot all my groups today off of a Caldwell tack driver and a rear bag so it's definitely not the bipod as I was thinking it could be. Also, don't think it's me. Focused on fundamentals again and made sure I adjusted out all parallax. Also allowed plenty time between each shot. Barrel never warmed up. </p><p></p><p> Im going to order the wiser precision magneto speed mount so that I can track all my velocity and be sure it's a velocity es/sd issue. Also will work on getting my es and as down. I think I'm gunna start my volume sorting my brass or maybe getting better brass and then weighing it. What do you guys make of this? Any thoughts or suggestions from here?</p></blockquote><p></p>
[QUOTE="Joefrazell, post: 1848699, member: 101262"] Alright, went back out today and this is what I found. I shot 3 shots of 74.5 grains and 3 shots of 76.5 gr. over the magneto speed to check out my velocity. I know that's way to small of a sample but I think it worked. 74.5 gr. 2882fps, 2855, 2881 .863" wide and 1.056 tall 76.5 gr. 2980, 2973, 3004 .638 wide and .715 tall So these are pretty huge extreme spreads especially for these small of batches. I can only imagine what a 10 shot test would show. When I did my original ladder test the group was .8 wide and 1.6 tall Here's what the groups have done at 100 yrds all 4 shot groups except 77 gr. was 3 shots as I was getting a slight heavy bolt. 74 gr .617 wide 1.1 tall 74.5 .294 wide .362 tall 75 .211 wide 1.05" tall 75.5 .297 wide .936 tall 76 .674 wide 1.54 tall 76.5 .619 wide 1.467 tall 77 .290 wide 1.4 tall I took it out to 360 yards today and shot these groups 74.5 3 shots 1.352 wide and 3.928 tall 76.5 1.754 wide and 5.572" tall So what I'm thinking is my sd and es is just too much for this cartridge and barrel length/ profile. I think it's getting alot of barrel whip and is really showing up on the vertical with these velocity variations. Also, it's important to note that I shot all my groups today off of a Caldwell tack driver and a rear bag so it's definitely not the bipod as I was thinking it could be. Also, don't think it's me. Focused on fundamentals again and made sure I adjusted out all parallax. Also allowed plenty time between each shot. Barrel never warmed up. Im going to order the wiser precision magneto speed mount so that I can track all my velocity and be sure it's a velocity es/sd issue. Also will work on getting my es and as down. I think I'm gunna start my volume sorting my brass or maybe getting better brass and then weighing it. What do you guys make of this? Any thoughts or suggestions from here? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Vertical stringing
Top