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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22/6mm bullets blowing up
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<blockquote data-quote="bearmn56" data-source="post: 609433" data-attributes="member: 41378"><p>New to this site....but not new to shooting. I started working with the .22/6mm several years ago. First barrel was a Montana Rifleman...gain twist to 1 in 8". Did not work out...bullets blowing up...even the heavies...69,75,77,80s. Went to a 1 in 8" Hart barrel. Shot fairly well...Sierra 80gr MKs the only thing that would stay together....most of the time. Throat gone after working up loads and one prairie dog hunt.....bullets would explode or fly erratically. Two years ago had a 30" Lilja very heavy barrel installed...3 groove, 1 in 8" twist. Everything blows up except solid copper 70gr Barnes and 75gr Swift Scirroco IIs. Bullets that blow up leave their jackets about 25 yds in front of shooting position....they look like little copper dimes. The ones that don't blow up quickly show grey lead halos around the bullet holes at 25yds and often don't make it to 100yds. Examination reveals that they have split along one of the grooves created by the lands. Dan Lilja says that his 3 groove barrels are the best.....Doesn't understand why everything is not working out. Have done nothing with the rifle for two years...in the gun safe. Want to get it going...Have heard of the "new"??Berger "Thick Jackets" and wonder if they will work without blowing up. So, two questions.....Is anyone else having the blowup problem with the ultra high velocity .22s? Does anyone have any solutions?</p><p> Have spent a zillion dollars on this project and would be open to ANY suggestions.</p><p> Respectfully,</p><p> Bearmn56</p><p> Montana Territory</p></blockquote><p></p>
[QUOTE="bearmn56, post: 609433, member: 41378"] New to this site....but not new to shooting. I started working with the .22/6mm several years ago. First barrel was a Montana Rifleman...gain twist to 1 in 8". Did not work out...bullets blowing up...even the heavies...69,75,77,80s. Went to a 1 in 8" Hart barrel. Shot fairly well...Sierra 80gr MKs the only thing that would stay together....most of the time. Throat gone after working up loads and one prairie dog hunt.....bullets would explode or fly erratically. Two years ago had a 30" Lilja very heavy barrel installed...3 groove, 1 in 8" twist. Everything blows up except solid copper 70gr Barnes and 75gr Swift Scirroco IIs. Bullets that blow up leave their jackets about 25 yds in front of shooting position....they look like little copper dimes. The ones that don't blow up quickly show grey lead halos around the bullet holes at 25yds and often don't make it to 100yds. Examination reveals that they have split along one of the grooves created by the lands. Dan Lilja says that his 3 groove barrels are the best.....Doesn't understand why everything is not working out. Have done nothing with the rifle for two years...in the gun safe. Want to get it going...Have heard of the "new"??Berger "Thick Jackets" and wonder if they will work without blowing up. So, two questions.....Is anyone else having the blowup problem with the ultra high velocity .22s? Does anyone have any solutions? Have spent a zillion dollars on this project and would be open to ANY suggestions. Respectfully, Bearmn56 Montana Territory [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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22/6mm bullets blowing up
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