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Rifles, Reloading, Optics, Equipment
Reloading
Help explain taper crimp
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<blockquote data-quote="SteelBanger" data-source="post: 2286880" data-attributes="member: 112192"><p>So I'm loading 350 Legend for the first time, using the Hornady 4 die set, virgin Starline brass, and 125gr hammers ... but first I loaded up some flat base 124gr RMR bullets (just for plinking around) and I had to bell the case mouth about 3 thou to seat them. I still haven't shot these but I prepped the cases for the hammers the same way. </p><p></p><p>The case mouth ID after sizing is about .353 and I'm stuffing a .355 bullet into it. Adding a 3 thou bell to the case mouth gets me to .356 ID and it's just enough to seat the RMR bullets and of course the hammers seat just fine with the boat tail.</p><p></p><p>My first question is since the hammers have such a pronounced boat tail, is belling the case mouth even necessary and if not, is the taper crimp needed if there's no belling? I'm seating the hammers to the middle of the top ring / groove if that matters. </p><p></p><p>Second question is on applying the taper crimp to the RMR bullets. After seating the bullets my case mouth is still .356 but the bullet base pushes the case out to .356 for the length of the bullet, essentially eliminating the bell. I've set up the TC die per the instructions but the case mouth stays at .356. How do I know if I've put too much or too little TC on it and is it even needed if I have that consistent tension on the entire bullet base?</p></blockquote><p></p>
[QUOTE="SteelBanger, post: 2286880, member: 112192"] So I’m loading 350 Legend for the first time, using the Hornady 4 die set, virgin Starline brass, and 125gr hammers ... but first I loaded up some flat base 124gr RMR bullets (just for plinking around) and I had to bell the case mouth about 3 thou to seat them. I still haven’t shot these but I prepped the cases for the hammers the same way. The case mouth ID after sizing is about .353 and I’m stuffing a .355 bullet into it. Adding a 3 thou bell to the case mouth gets me to .356 ID and it’s just enough to seat the RMR bullets and of course the hammers seat just fine with the boat tail. My first question is since the hammers have such a pronounced boat tail, is belling the case mouth even necessary and if not, is the taper crimp needed if there’s no belling? I’m seating the hammers to the middle of the top ring / groove if that matters. Second question is on applying the taper crimp to the RMR bullets. After seating the bullets my case mouth is still .356 but the bullet base pushes the case out to .356 for the length of the bullet, essentially eliminating the bell. I’ve set up the TC die per the instructions but the case mouth stays at .356. How do I know if I’ve put too much or too little TC on it and is it even needed if I have that consistent tension on the entire bullet base? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Help explain taper crimp
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