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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How to blowup your rifle
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<blockquote data-quote="Winkfish" data-source="post: 1380523" data-attributes="member: 98068"><p>Well. I destroyed my 300 RUM today.</p><p></p><p>Yesterday I was testing some load development on my 300 RUM with Berger 230 with Retumbo.</p><p></p><p>Everything went well and found a load that appeared to group well. 86.8 gr. COL of 3.600" Federal 215 primers on Hornady Brass.</p><p></p><p>The temps were 3 degrees and a slight breeze bringing the windchill temps down to -15.</p><p></p><p>I went home and loaded a few more rounds at that charge and try a couple other loads. </p><p></p><p>Today it was -10 with a 20mph wind. For some reason no one else was at the range. I fired 20 rounds of 190gr Nosler Accubonds to make sure that everything was working well and to warm myself up a bit. I am getting about 3100 fps out of the 190s with Retumbo at 91.5gr</p><p></p><p>20 rounds fired and not a single issue. I was firing a 2 rounds then I would let it sit for few minutes and fire other rifles.</p><p></p><p>About an hour into it I then switched over to the 230 grain rounds. I fired the first round. 3129fps and I couldn't lift the bolt. Something was seriously wrong. I broke off the bolt handle trying to open it at the range hitting it with my hand trying to open the action.</p><p></p><p>I took the rifle to my local smith and I attempted to get the bolt out. After three hours f trying everything under the sun, No luck. There is a picture of the results:</p><p></p><p><img src="https://i.imgur.com/QrNtyDc.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p> </p><p>It was very difficult to put the gun on a band saw and cut it apart.</p><p></p><p>To say the least I am not happy. A perfectly good rifle is now a pile of scrap.</p><p></p><p>I went home and pulled all the bullets to check the powder charges. I used a two different scales and I was within .1 grain of what I loaded. </p><p></p><p>I don't know what happened. Obviously over pressured. It was 3 degrees out when I tested the rounds and it was only -10 today. There were no pressure sings, no cratered primers, nothing that would indicate that there were any issues on that same load the day before.</p><p></p><p>What a great way to end the year. I guess I will be looking for a new rifle in the new year.</p></blockquote><p></p>
[QUOTE="Winkfish, post: 1380523, member: 98068"] Well. I destroyed my 300 RUM today. Yesterday I was testing some load development on my 300 RUM with Berger 230 with Retumbo. Everything went well and found a load that appeared to group well. 86.8 gr. COL of 3.600" Federal 215 primers on Hornady Brass. The temps were 3 degrees and a slight breeze bringing the windchill temps down to -15. I went home and loaded a few more rounds at that charge and try a couple other loads. Today it was -10 with a 20mph wind. For some reason no one else was at the range. I fired 20 rounds of 190gr Nosler Accubonds to make sure that everything was working well and to warm myself up a bit. I am getting about 3100 fps out of the 190s with Retumbo at 91.5gr 20 rounds fired and not a single issue. I was firing a 2 rounds then I would let it sit for few minutes and fire other rifles. About an hour into it I then switched over to the 230 grain rounds. I fired the first round. 3129fps and I couldn't lift the bolt. Something was seriously wrong. I broke off the bolt handle trying to open it at the range hitting it with my hand trying to open the action. I took the rifle to my local smith and I attempted to get the bolt out. After three hours f trying everything under the sun, No luck. There is a picture of the results: [IMG]https://i.imgur.com/QrNtyDc.jpg[/IMG] It was very difficult to put the gun on a band saw and cut it apart. To say the least I am not happy. A perfectly good rifle is now a pile of scrap. I went home and pulled all the bullets to check the powder charges. I used a two different scales and I was within .1 grain of what I loaded. I don't know what happened. Obviously over pressured. It was 3 degrees out when I tested the rounds and it was only -10 today. There were no pressure sings, no cratered primers, nothing that would indicate that there were any issues on that same load the day before. What a great way to end the year. I guess I will be looking for a new rifle in the new year. [/QUOTE]
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