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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Federal TLR and Trophy Bonded Tip
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<blockquote data-quote="mechengr" data-source="post: 1341762" data-attributes="member: 75894"><p>Preliminary velocity results are promising, this 26" barrel sure helps the slow burning powders do their magic. Shot all with Magnetospeed attached so I will have to wait until the next range trip for accuracy results.</p><p></p><p>A compressed case full of 60 grains H1000 gave 2820 fps with no pressure signs. Drop tube required when seated at 3.330 OAL.</p><p></p><p>I also tried H4831 which struggled to match velocity. The heaviest charge of 54 grains only got to 2630. Since these bullets only have half a lead core, they're longer overall than traditional bullets and when seated to an OAL of 3.330 this load was compressed even after using a drop tube.</p><p></p><p>The big surprise was Reloder 22. There was a small card included in the bullet box with load data from Federal. One of the two listed was RL22, start load of 55 gr @ 2712 fps ending with max load of 57 gr @ 2808 fps. They stated their test firearm as a 24" Ruger M77 MkII. I followed their data, loading from 55 to 57 in half grain increments. I about fell off the bench when the Magnetospeed read 2947 fps from the 55 gr load! Their load data is definitely hotter than many other books with 160/162 class bullets, but I also mush have a very fast lot of RL22 powder. Pressure signs at 55 looked good but by 55.5 the primer was starting to flatten. I only made it to the 56 gr load before very flat primers, faint ejector swipe and a slightly heavy bolt. Velocity there read 2967 fps. I ended up pulling the rest of the higher charges and I think I'll be checking 55 grains and below for accuracy. Interestingly, the 162 ELD-X shoots 3/4" groups at this same 55 gr charge weight, but at only just over 2800 fps. I'll be tickled pink if the TBT ends up 3/4" groups at 2900 fps! Would be some seriously bad elk medicine</p></blockquote><p></p>
[QUOTE="mechengr, post: 1341762, member: 75894"] Preliminary velocity results are promising, this 26" barrel sure helps the slow burning powders do their magic. Shot all with Magnetospeed attached so I will have to wait until the next range trip for accuracy results. A compressed case full of 60 grains H1000 gave 2820 fps with no pressure signs. Drop tube required when seated at 3.330 OAL. I also tried H4831 which struggled to match velocity. The heaviest charge of 54 grains only got to 2630. Since these bullets only have half a lead core, they're longer overall than traditional bullets and when seated to an OAL of 3.330 this load was compressed even after using a drop tube. The big surprise was Reloder 22. There was a small card included in the bullet box with load data from Federal. One of the two listed was RL22, start load of 55 gr @ 2712 fps ending with max load of 57 gr @ 2808 fps. They stated their test firearm as a 24" Ruger M77 MkII. I followed their data, loading from 55 to 57 in half grain increments. I about fell off the bench when the Magnetospeed read 2947 fps from the 55 gr load! Their load data is definitely hotter than many other books with 160/162 class bullets, but I also mush have a very fast lot of RL22 powder. Pressure signs at 55 looked good but by 55.5 the primer was starting to flatten. I only made it to the 56 gr load before very flat primers, faint ejector swipe and a slightly heavy bolt. Velocity there read 2967 fps. I ended up pulling the rest of the higher charges and I think I'll be checking 55 grains and below for accuracy. Interestingly, the 162 ELD-X shoots 3/4" groups at this same 55 gr charge weight, but at only just over 2800 fps. I'll be tickled pink if the TBT ends up 3/4" groups at 2900 fps! Would be some seriously bad elk medicine [/QUOTE]
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Federal TLR and Trophy Bonded Tip
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