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Reloading
210 bergers blowing up?? help 30-378 wby
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<blockquote data-quote="bsb" data-source="post: 109561" data-attributes="member: 5761"><p>Kirby you are awsome and I couldn't have said it better /ubbthreads/images/graemlins/laugh.gif</p><p>I talked with walt berger he is leaning toward a dirty barrel, (Heck of a nice guy might I add)here is what he sent back to me in the email he added some qustions to my post but i could not get them high lighted on here sorry.</p><p></p><p>A little statement about this cartridge. It is a BIG overbore cartridge using a lot of slow burning powder that results in short barrel life. How short depends on the manner in which it is used. If the barrel is a factory contour and shots are fired in rather rapid sequence barrel life will be SHORT. If the barrel has not been properly cleaned and copper and powder fouling allowed to build up bullet damage will be excessive and the integrity of the bullet will be destroyed and their WILL be in-flight bullet failure and you are experiencing in flight bullet failure. The 30/378 has been used in 1000 yard bench rest matches with some success. They utilize massive diameter barrels some 30 plus inches long and the total rifle can weigh in excess of 50 pounds. Barrel life is short and of no real concern to most of these shooters as they will be changed after a few hundred rounds. </p><p> </p><p>With the above out of the road some comments, questions and observations below:</p><p> </p><p>This is the deal, me and my Brother has been trying to get dialed in for 1000yrds, we loaded some 210 bergers last week in his 30-378 and found a good load with 105Gr of retumbo (shot probably 20 into paper just fine) Is the rifle a factory rifle and was the barrel clean when you started your testing to find "that good load" and was the rifle cleaned (and how was it cleaned) after the 20 shots to determine a good load? </p><p></p><p>with no pressure signs so he loaded up 60 and went to the </p><p>range (field) He changed his scope to his other 8.5x25</p><p></p><p>leupold so we sighted in at 200 yrds well we got it on a 8" How many shots did it take to get on the paper plate, after the scope change, and did you have any bullet failures during this sight in procedure? </p><p></p><p>paper plate did 2 shots about a 11/2" apart the next shot </p><p>hit nothing no plate or plywood but my boy said he saw </p><p>somthing hit about 20' low we thought huh whats the deal!</p><p></p><p>so we started shooting at 1000' yrds he missed 1st 2 and the dust boiled up each miss as it is in a dry field At what distance did the dust boil up and was it close to the bullets path to the target?</p><p>then he hit the plate 3 strait let the gun cooldown and tryed it again, this time nothing no dust or nothing but a wiered You were shooting over a dusty field from muzzle to 1000 yards and you did not see any bullet impact in the field? </p><p></p><p>twang sound he shot again and same thing, so we picked a </p><p>little bush about 700yrds same thing no dust or nothing</p><p></p><p>just wierd twang sound! The so called twang sound could it have been sort of a whistle sound. If a bullet completely bows up it will most likely blow up between 30 and 70 yards was this distance over the dusty field? so I shot my 168Bergers (RUM) at bush </p><p>and the dust flew big time. well all his new brass he just Is this the same brass and load that you used to sighted the rifle in on the paper plate?</p><p>loaded had pressure signs on the base A 1/8" round imprint Was this imprint from the ejector in the bolt? </p><p></p><p>same load as the weeks before it was about 70 degress here today and I am telling you the bullet is going crazy sometimes! It chronoed at 3115 (210 bergers) the week before </p><p></p><p>so why is it showing the pressure signs could be temp etc I know,but why are those bullets not making the flight? Explain your reloading procedure and is it the same as the cartridge you used to work up your load. Yes, temperature does make a difference what was the temperature when you were working up your load?</p><p>And one time when He was shooting at the 1000Yrd plate we saw some dirt (about like a dirt clod Threw) being kicked up about a 100 yrs away and the twang sound. when there was a twang sound there was no dust or nothing at targets! when there was no twang sound the dirt flew like a tornado! This dust you saw at about 100 yards was most likely a complete bullet failure.</p><p></p><p>please help? we are calling walt berger in morning.</p><p>Yes the loads were a little hot for some reason, new cases</p><p></p><p>or temp or different powder batch, but is it normal to have bullets go bye bye with a little extra pressure? Since the back of the case should an indentation it is a sign of pressure but I am not sure this is all of the problem. Did the bolt handle lift hard when you ejected the fired round?</p><p></p><p>Dont get me wrong any signs of pressure is unexceptable for us. </p><p></p><p>Please help walt Some questions below</p><p> </p><p>How many rounds has been fired through this rifle?</p><p> </p><p>Was it purchased new?</p><p> </p><p>Does it have a muzzle brake?</p><p> </p><p>From the time you worked up your loads till you quit shooting how many times was the rifle cleaned?</p><p> </p><p>What kind of reloading equipment are you using?</p><p> </p><p>Do you measure or weigh your powder? </p><p> </p><p>Were the case mouths of the new brass chamfered?</p><p> </p><p>What was the cartridge over all length?</p><p> </p><p>Did you pierce any primers and what primers were you using.</p><p> </p><p>Thanks for your help on this.</p><p>Walt Berger</p><p>Berger Bullets</p><p>Technical Advisor</p><p> </p><p>Phone No 623 587 9363</p><p>PS One problem with the phone is my hearing is very bad and I do have a hard time understand some of our customers when they call.</p></blockquote><p></p>
[QUOTE="bsb, post: 109561, member: 5761"] Kirby you are awsome and I couldn't have said it better [img]/ubbthreads/images/graemlins/laugh.gif[/img] I talked with walt berger he is leaning toward a dirty barrel, (Heck of a nice guy might I add)here is what he sent back to me in the email he added some qustions to my post but i could not get them high lighted on here sorry. A little statement about this cartridge. It is a BIG overbore cartridge using a lot of slow burning powder that results in short barrel life. How short depends on the manner in which it is used. If the barrel is a factory contour and shots are fired in rather rapid sequence barrel life will be SHORT. If the barrel has not been properly cleaned and copper and powder fouling allowed to build up bullet damage will be excessive and the integrity of the bullet will be destroyed and their WILL be in-flight bullet failure and you are experiencing in flight bullet failure. The 30/378 has been used in 1000 yard bench rest matches with some success. They utilize massive diameter barrels some 30 plus inches long and the total rifle can weigh in excess of 50 pounds. Barrel life is short and of no real concern to most of these shooters as they will be changed after a few hundred rounds. With the above out of the road some comments, questions and observations below: This is the deal, me and my Brother has been trying to get dialed in for 1000yrds, we loaded some 210 bergers last week in his 30-378 and found a good load with 105Gr of retumbo (shot probably 20 into paper just fine) Is the rifle a factory rifle and was the barrel clean when you started your testing to find "that good load" and was the rifle cleaned (and how was it cleaned) after the 20 shots to determine a good load? with no pressure signs so he loaded up 60 and went to the range (field) He changed his scope to his other 8.5x25 leupold so we sighted in at 200 yrds well we got it on a 8" How many shots did it take to get on the paper plate, after the scope change, and did you have any bullet failures during this sight in procedure? paper plate did 2 shots about a 11/2" apart the next shot hit nothing no plate or plywood but my boy said he saw somthing hit about 20' low we thought huh whats the deal! so we started shooting at 1000' yrds he missed 1st 2 and the dust boiled up each miss as it is in a dry field At what distance did the dust boil up and was it close to the bullets path to the target? then he hit the plate 3 strait let the gun cooldown and tryed it again, this time nothing no dust or nothing but a wiered You were shooting over a dusty field from muzzle to 1000 yards and you did not see any bullet impact in the field? twang sound he shot again and same thing, so we picked a little bush about 700yrds same thing no dust or nothing just wierd twang sound! The so called twang sound could it have been sort of a whistle sound. If a bullet completely bows up it will most likely blow up between 30 and 70 yards was this distance over the dusty field? so I shot my 168Bergers (RUM) at bush and the dust flew big time. well all his new brass he just Is this the same brass and load that you used to sighted the rifle in on the paper plate? loaded had pressure signs on the base A 1/8" round imprint Was this imprint from the ejector in the bolt? same load as the weeks before it was about 70 degress here today and I am telling you the bullet is going crazy sometimes! It chronoed at 3115 (210 bergers) the week before so why is it showing the pressure signs could be temp etc I know,but why are those bullets not making the flight? Explain your reloading procedure and is it the same as the cartridge you used to work up your load. Yes, temperature does make a difference what was the temperature when you were working up your load? And one time when He was shooting at the 1000Yrd plate we saw some dirt (about like a dirt clod Threw) being kicked up about a 100 yrs away and the twang sound. when there was a twang sound there was no dust or nothing at targets! when there was no twang sound the dirt flew like a tornado! This dust you saw at about 100 yards was most likely a complete bullet failure. please help? we are calling walt berger in morning. Yes the loads were a little hot for some reason, new cases or temp or different powder batch, but is it normal to have bullets go bye bye with a little extra pressure? Since the back of the case should an indentation it is a sign of pressure but I am not sure this is all of the problem. Did the bolt handle lift hard when you ejected the fired round? Dont get me wrong any signs of pressure is unexceptable for us. Please help walt Some questions below How many rounds has been fired through this rifle? Was it purchased new? Does it have a muzzle brake? From the time you worked up your loads till you quit shooting how many times was the rifle cleaned? What kind of reloading equipment are you using? Do you measure or weigh your powder? Were the case mouths of the new brass chamfered? What was the cartridge over all length? Did you pierce any primers and what primers were you using. Thanks for your help on this. Walt Berger Berger Bullets Technical Advisor Phone No 623 587 9363 PS One problem with the phone is my hearing is very bad and I do have a hard time understand some of our customers when they call. [/QUOTE]
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