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<blockquote data-quote="shooters" data-source="post: 572935" data-attributes="member: 7769"><p>I will take all the advice given and apply tomorrow once again. Unfortunately, I opened way to many threads in a panic and some in the wrong sections all on this issue. Sorry for the multiple threads. </p><p></p><p>Went to the range once again earlier up until dark. Here is exactly what I've done today, some I may be repeating over and over, but its so someone may catch a mistake I've made. Sorry, archer by trade, but doing everything I can to learn here. </p><p></p><p>A friend here in town is a gun smith, and being Thanksgiving day, his shop was closed but he allowed me to swing over to his place for him to double check my scope set up and install. Everything was taken apart and reinstalled and torque to correct tightness. I have Seekins Medium base and ring set up on a Sendero ll rifle. Scope is the Sightron Slll SS LRD with Parallax. </p><p>Remington brass once fired. Full resized with Redding dies. Brass cut to 2.840 precisely. All weight sorted within .5gr. Primer pocket uniformed. Flash holes debured. Neck's turned. All exact. Fed 215 Primers set .010 under flush. All 200 gr accubonds weighed to exact weights and sorted like the brass. OAL of final founds 3.600. 94.0 gr Retumbo powder. 3104 average fps from 5 rounds. </p><p></p><p>Range. I do NOT have a 275 yard target just yet, so I was relying on ballistics calculator. I didn't miss a single step in putting info into calculator. I knew all the information exactly at that exact time. Sight height at 2" if I measured correctly. I shot 3 shot groups each time, waiting 5 min before each shot for cooling. After each shot, I cleaned with Tetra gun until all blue copper was no longer visible. Just to be safe, I used Sweets as a back up to see if there was any left that the Tetra missed. None.</p><p></p><p>Targets are perfectly horizontal to my shooting bench as best I could tell. No tools to measure, but I would say **** near perfect. Bench is stable, zero movement. Set up on a led sled that has two ratchet straps holding it tightly in place to the concrete bench. Gun was NOT strapped down, it was free to move about. Nothing under the forearm of the rifle that would maybe affect accuracy. Each shot felt excellent when trigger was squeezed. Jewel trigger I might add has been installed and I believe set at around 3lbs. Not sure if that is too heavy, but gun smith said not to go too light for a hunting rifle.</p><p></p><p>50 yards. Scope on 24 power, parallax adjusted. Don't notice any side to side movement out of the dot when I move my head. 3 shots, same hole. Literally.</p><p>100 yards. Scope still on 24 power, parallax adjusted. Didn't seem to notice any movement side to side from scope. 3 shots. 2 touching, 1 about 1/16 off from touching. </p><p>200 yards. 24 power, parallax adjusted to infinity. When I moved my head side to side or up and down, I did notice the dot slightly moving. VERY little. Instead of 2.7 inches high, I had 1 4 inches high, 3 inches left. 1 3.5 inches low, 2 inches left, and 1 horizontally correct, but 4.24 high.</p><p>300 yards. 24 power, parallax not adjusted. Noticed a little movement from DOT when head moved side to side and up and down, but not enough to throw me off as far as shots were, at least to what I thought. 8.5 inches low and 3 inches right. 11 inches low, 6 inches right, and 3 inches low, 1 inch left.</p><p></p><p>What is the deal? I should have just stuck with archery. I am so frustrated. I have been trying to do everything so precise and its just not working. Someone at the range told me that the led sled is the culprit, yet I thought I read a thread on here one time discussing the sled and someone said that bullet is long gone from the bore way before the recoil has even started. So either the parallax is causing my problem like another member said, the led sled is, or??? I'm so lost. I have loaded up everything the same as before, except this time I will try 5 shot groups at 91 gr, 92 gr, 93 gr, and then max at 95 gr. This is my 3rd RUM. The first one I had, Kirby, or FiftyDriver loaded up for me, all max loads and specs to the book. Nothing fancy. Winchester gun. That was the most amazing factory rifle as far as accuracy I've owned. Second was the Sendero l 300 RUM. My buddy loaded exactly what Kirby did. What a dream. Groups to 400 were amazing. Now this one, I just cant figure out. This is the first Seekins setup I've had and the first Sightron. The other 2 RUM's had mid level Leupolds and plain Jane rings and bases on them. I'm so bummed out. Thanks again guys.</p></blockquote><p></p>
[QUOTE="shooters, post: 572935, member: 7769"] I will take all the advice given and apply tomorrow once again. Unfortunately, I opened way to many threads in a panic and some in the wrong sections all on this issue. Sorry for the multiple threads. Went to the range once again earlier up until dark. Here is exactly what I've done today, some I may be repeating over and over, but its so someone may catch a mistake I've made. Sorry, archer by trade, but doing everything I can to learn here. A friend here in town is a gun smith, and being Thanksgiving day, his shop was closed but he allowed me to swing over to his place for him to double check my scope set up and install. Everything was taken apart and reinstalled and torque to correct tightness. I have Seekins Medium base and ring set up on a Sendero ll rifle. Scope is the Sightron Slll SS LRD with Parallax. Remington brass once fired. Full resized with Redding dies. Brass cut to 2.840 precisely. All weight sorted within .5gr. Primer pocket uniformed. Flash holes debured. Neck's turned. All exact. Fed 215 Primers set .010 under flush. All 200 gr accubonds weighed to exact weights and sorted like the brass. OAL of final founds 3.600. 94.0 gr Retumbo powder. 3104 average fps from 5 rounds. Range. I do NOT have a 275 yard target just yet, so I was relying on ballistics calculator. I didn't miss a single step in putting info into calculator. I knew all the information exactly at that exact time. Sight height at 2" if I measured correctly. I shot 3 shot groups each time, waiting 5 min before each shot for cooling. After each shot, I cleaned with Tetra gun until all blue copper was no longer visible. Just to be safe, I used Sweets as a back up to see if there was any left that the Tetra missed. None. Targets are perfectly horizontal to my shooting bench as best I could tell. No tools to measure, but I would say **** near perfect. Bench is stable, zero movement. Set up on a led sled that has two ratchet straps holding it tightly in place to the concrete bench. Gun was NOT strapped down, it was free to move about. Nothing under the forearm of the rifle that would maybe affect accuracy. Each shot felt excellent when trigger was squeezed. Jewel trigger I might add has been installed and I believe set at around 3lbs. Not sure if that is too heavy, but gun smith said not to go too light for a hunting rifle. 50 yards. Scope on 24 power, parallax adjusted. Don't notice any side to side movement out of the dot when I move my head. 3 shots, same hole. Literally. 100 yards. Scope still on 24 power, parallax adjusted. Didn't seem to notice any movement side to side from scope. 3 shots. 2 touching, 1 about 1/16 off from touching. 200 yards. 24 power, parallax adjusted to infinity. When I moved my head side to side or up and down, I did notice the dot slightly moving. VERY little. Instead of 2.7 inches high, I had 1 4 inches high, 3 inches left. 1 3.5 inches low, 2 inches left, and 1 horizontally correct, but 4.24 high. 300 yards. 24 power, parallax not adjusted. Noticed a little movement from DOT when head moved side to side and up and down, but not enough to throw me off as far as shots were, at least to what I thought. 8.5 inches low and 3 inches right. 11 inches low, 6 inches right, and 3 inches low, 1 inch left. What is the deal? I should have just stuck with archery. I am so frustrated. I have been trying to do everything so precise and its just not working. Someone at the range told me that the led sled is the culprit, yet I thought I read a thread on here one time discussing the sled and someone said that bullet is long gone from the bore way before the recoil has even started. So either the parallax is causing my problem like another member said, the led sled is, or??? I'm so lost. I have loaded up everything the same as before, except this time I will try 5 shot groups at 91 gr, 92 gr, 93 gr, and then max at 95 gr. This is my 3rd RUM. The first one I had, Kirby, or FiftyDriver loaded up for me, all max loads and specs to the book. Nothing fancy. Winchester gun. That was the most amazing factory rifle as far as accuracy I've owned. Second was the Sendero l 300 RUM. My buddy loaded exactly what Kirby did. What a dream. Groups to 400 were amazing. Now this one, I just cant figure out. This is the first Seekins setup I've had and the first Sightron. The other 2 RUM's had mid level Leupolds and plain Jane rings and bases on them. I'm so bummed out. Thanks again guys. [/QUOTE]
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