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Rifles, Reloading, Optics, Equipment
Gunsmithing
7mm STW - Stuck cases, at wits end
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<blockquote data-quote="One_Duck_Limit" data-source="post: 532376" data-attributes="member: 13320"><p><strong>"Did you remove the barrel to polish it? Did you try measuring the back of the chamber?"</strong></p><p> </p><p>We polished the chamber without removing the barrel. If the polish job doesn't fix the problem we are going to remove the barrel and make a cast of the chamber to take the measurements.</p><p> </p><p><strong>"I would size the cases one more time, and reload them with one grain less powder. That ring you are seeing is known as a pressure ring, and when you see it it's time to back off a bit. Also you need a better die than what you probably are using to resize the case down by the belt. Look for Larry Willis on the internet as he has the die needed to resize near the belt."</strong></p><p> </p><p>One of the things that's been so frustrating is that the stuck cases are so random. One day a starting load extracts just fine. The next day the same load will stick. A couple of weeks ago I had a nice conversation with Larry Willis about his sizing die and the problems we were having. We have checked the size of the brass after it's been partially full lengthed. It chambers great, no resistance at all.</p><p> </p><p><strong>"Just a simple thought....I had the same problem, all cases stuck in a 6.5X284, WHEN I used HORNADY brass.....went to Norma and ZERO problems....the cases were growing too long and sticking my bolt. The Norma has, after 3 firings, began to grow the primer pockets (soft brass). No, the load is within specs. I am NOT even close to the gunsmith knowledge these other responders are, but it worked for me and Hornady and I are trying to resolve the issues I have with the brass."</strong></p><p> </p><p>We've only got two choices in 7mm STW (that I know of), Nosler and Remington. We have tried both brands with the same results.</p><p> </p><p><strong>"i would get the head space checked out on the chamber. "</strong></p><p> </p><p>The head space has been checked, and re-checked, several times.</p><p> </p><p>We haven't made it to the range since polishing the chamber. I'll let you all know how it goes later this week. I was going to post a picture of the two cases we fired last week after polishing the chamber but they have already been tumbled. So here is a picture of a nice mule deer buck we found this past weekend.</p><p> </p><p><img src="http://i1236.photobucket.com/albums/ff450/dwsperry/4x5muley.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="One_Duck_Limit, post: 532376, member: 13320"] [B]"Did you remove the barrel to polish it? Did you try measuring the back of the chamber?"[/B] We polished the chamber without removing the barrel. If the polish job doesn't fix the problem we are going to remove the barrel and make a cast of the chamber to take the measurements. [B]"I would size the cases one more time, and reload them with one grain less powder. That ring you are seeing is known as a pressure ring, and when you see it it's time to back off a bit. Also you need a better die than what you probably are using to resize the case down by the belt. Look for Larry Willis on the internet as he has the die needed to resize near the belt."[/B] One of the things that's been so frustrating is that the stuck cases are so random. One day a starting load extracts just fine. The next day the same load will stick. A couple of weeks ago I had a nice conversation with Larry Willis about his sizing die and the problems we were having. We have checked the size of the brass after it's been partially full lengthed. It chambers great, no resistance at all. [B]"Just a simple thought....I had the same problem, all cases stuck in a 6.5X284, WHEN I used HORNADY brass.....went to Norma and ZERO problems....the cases were growing too long and sticking my bolt. The Norma has, after 3 firings, began to grow the primer pockets (soft brass). No, the load is within specs. I am NOT even close to the gunsmith knowledge these other responders are, but it worked for me and Hornady and I are trying to resolve the issues I have with the brass."[/B] We've only got two choices in 7mm STW (that I know of), Nosler and Remington. We have tried both brands with the same results. [B]"i would get the head space checked out on the chamber. "[/B] The head space has been checked, and re-checked, several times. We haven't made it to the range since polishing the chamber. I'll let you all know how it goes later this week. I was going to post a picture of the two cases we fired last week after polishing the chamber but they have already been tumbled. So here is a picture of a nice mule deer buck we found this past weekend. [IMG]http://i1236.photobucket.com/albums/ff450/dwsperry/4x5muley.jpg[/IMG] [/QUOTE]
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7mm STW - Stuck cases, at wits end
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