Crimps - Factory vs side
Posted: Mon Dec 27, 2010 5:37 pm
Factory Crimp vs LeGendre Side Crimp
Equal rounds of Factory Ammo to Equal amounts of Factory rounds with a LeGendre Side-Crimp.
Factory Ammunition with factory Taper Crimp - 2150fps & 33150 Psi.
Factory Ammunition with factory Taper crimp and a LeGendre Side Crimp - 2153fps & 33406 Psi.
This was done in a std 20" 450 Bushmaster.
It was done in my Lab (Your results and safety, will be different.), under realistic conditions, in other words, Nothing Special. We just wanted to know..
My very Subjective conclusion are as follows.
Normal sooting was observed with the factory ammo. Noticeable reduced sooting was observed when the side crimp was applied. Negligible increase in either fps or psi numbers. It will be interesting to see what the groups eventually say when we have more time, as we weren't managing for groups.
But we did test some loads for the 325gr Barnes Busters and speeds of 1850fps with RX-7 and safe pressures. And 2080 fps with what we consider "Here"-not what you might see" as On-the-High-Side-of Safe Pressures, which were 41,942.5psi, using AA1680. For you guys interested in ft/lb energy, it's 3122ft/lbs.
This 1680 load was the one we gave to Barnes and they killed a number of pigs, this year, in the 450 to 800 pound range and they said the terminal performance was just over-the-top-crazy, incredible. I can't post the pics until I get permission and it looks like they want them for Marketing. So, when you see pigs as big as a large couch and the shooters have a scoped 450b, that's my personal weapon, my inspired bullets and my loads that did all that killing. Look around the Barnes sight, they may already have the pics up?
They wanted to use a 450 mainly because they had, had a 650lb class pig charge them after it was hit with a 45-70 and that lever gun, just wasn't up to recharging the weapon fast enough, before the pig was on them, good thing they had back-up shooters, that was last year. This year, with the 450b, they felt well armed, with the knowledge that they had instant, reliable recharges, as in five rounds, and all the power necessary to get the job done, in a real hurry.
I think the Big Boys are starting to understand, what you guys already know..t
Equal rounds of Factory Ammo to Equal amounts of Factory rounds with a LeGendre Side-Crimp.
Factory Ammunition with factory Taper Crimp - 2150fps & 33150 Psi.
Factory Ammunition with factory Taper crimp and a LeGendre Side Crimp - 2153fps & 33406 Psi.
This was done in a std 20" 450 Bushmaster.
It was done in my Lab (Your results and safety, will be different.), under realistic conditions, in other words, Nothing Special. We just wanted to know..
My very Subjective conclusion are as follows.
Normal sooting was observed with the factory ammo. Noticeable reduced sooting was observed when the side crimp was applied. Negligible increase in either fps or psi numbers. It will be interesting to see what the groups eventually say when we have more time, as we weren't managing for groups.
But we did test some loads for the 325gr Barnes Busters and speeds of 1850fps with RX-7 and safe pressures. And 2080 fps with what we consider "Here"-not what you might see" as On-the-High-Side-of Safe Pressures, which were 41,942.5psi, using AA1680. For you guys interested in ft/lb energy, it's 3122ft/lbs.
This 1680 load was the one we gave to Barnes and they killed a number of pigs, this year, in the 450 to 800 pound range and they said the terminal performance was just over-the-top-crazy, incredible. I can't post the pics until I get permission and it looks like they want them for Marketing. So, when you see pigs as big as a large couch and the shooters have a scoped 450b, that's my personal weapon, my inspired bullets and my loads that did all that killing. Look around the Barnes sight, they may already have the pics up?
They wanted to use a 450 mainly because they had, had a 650lb class pig charge them after it was hit with a 45-70 and that lever gun, just wasn't up to recharging the weapon fast enough, before the pig was on them, good thing they had back-up shooters, that was last year. This year, with the 450b, they felt well armed, with the knowledge that they had instant, reliable recharges, as in five rounds, and all the power necessary to get the job done, in a real hurry.
I think the Big Boys are starting to understand, what you guys already know..t