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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
RL-17 & WSM: Too good to be True?
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<blockquote data-quote="Outlaw6.0" data-source="post: 546094" data-attributes="member: 23486"><p>Morning Fellas, here is the conundrum; I, just like the countless numbers of you out there, suffer from the shooters dreaded affliction named "tinkeritis". Here is some background for your pondering:</p><p> </p><p>7.82 Lazzeroni Patriot</p><p>Rem 700 SA- LH of course<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p>Factory Sendero contour BBL (rechambered w/brake)</p><p>Reworked Rem trigger (old style)</p><p>LongRifles Inc fire control (Pin, spring & cocking assy)</p><p>MK4 pic rail... yada yada</p><p> </p><p>Now, my go to load for the last several years was a 150 TSX & 71.5 grns of RL-19 w/ FED 215M for a very nominal velocity of ~3200 which is very slow I know, however ES & SD are both single digits & this combo is quite capable of putting 5 rounds in a ragged hole the size of your thumb nail...</p><p> </p><p>So, now we've decided we need MORE SPEED!! I decide to lose the very effective yet ballistically challenged 150 TSX in exchange for the more versatile 168 TTSX and ditch the old stanby RL-19 (Lazzeroni loves this stuff) in favor of the newer and shinier "Specifically for the Short Magnum.." RL-17. I of course cannot find any kind of data for a Lazzeroni & RL-17, so I pull data for a 300WSM as the WSM is longer & the Lazz' is fatter, I guesstimate that capacity is very similar (correct me if I am wrong). </p><p> </p><p>So here is a short preface as I worked my way north:</p><p> </p><p>Lazzeroni Brass (I don't know who actually makes it)</p><p>FED 215M</p><p>RL-17</p><p>Barnes 168 TTSX</p><p>~.050 jump (IIRC)</p><p> </p><p>90deg 4500' ele. 100yds</p><p>3 shot groups for pressure checks & accy potential</p><p> </p><p>66.0- Poor accuracy no pressure</p><p>66.5- Accuracy improved no pressure</p><p>67.0- Well under MOA little sticky, no ejector mark or flat primer</p><p>67.5- Good accy, bolt sticky, no ejector mark or flat primer *Maximum* for me </p><p> </p><p>Load 4 more & Check accy @ 67.0:</p><p>Good accy, 1 flyer?? (difference discovered in brass like new manufacturer or something??)</p><p> </p><p>Clean & Load 10 for 5 shot groups @ 67.0:</p><p>Good accy & repeatable </p><p> </p><p>Load 5 more for accy & pressure checks w/ Chrono:</p><p> </p><p>THIS is the whole point behind my post, I am absolutely baffled. Chrono shows a <strong><u>5 shot avg velocity of 3441fps</u></strong> with a 168grn bullet!? Holy crap! I know pressure is getting close to max, but worked up at 90degrees everything is hotter than the blazes...<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p> </p><p>So for those of you who use RL-17: Is this normal? I'm WELL aware of the old addage, "if something seems too good to be true.." but I've tried to prove myself wrong... 20-30 rounds of proofing on the same brass to again, detect pressure problems before ruining brass that is over $2.00ea.</p><p> </p><p>So what are your thoughts? I cannot find anything wrong with my findings, I will be reloading the last 5 cases again (4th or 5th loading) to verify velocity again this week (I hope). </p><p> </p><p>Thanks guys,</p></blockquote><p></p>
[QUOTE="Outlaw6.0, post: 546094, member: 23486"] Morning Fellas, here is the conundrum; I, just like the countless numbers of you out there, suffer from the shooters dreaded affliction named "tinkeritis". Here is some background for your pondering: 7.82 Lazzeroni Patriot Rem 700 SA- LH of course:D Factory Sendero contour BBL (rechambered w/brake) Reworked Rem trigger (old style) LongRifles Inc fire control (Pin, spring & cocking assy) MK4 pic rail... yada yada Now, my go to load for the last several years was a 150 TSX & 71.5 grns of RL-19 w/ FED 215M for a very nominal velocity of ~3200 which is very slow I know, however ES & SD are both single digits & this combo is quite capable of putting 5 rounds in a ragged hole the size of your thumb nail... So, now we've decided we need MORE SPEED!! I decide to lose the very effective yet ballistically challenged 150 TSX in exchange for the more versatile 168 TTSX and ditch the old stanby RL-19 (Lazzeroni loves this stuff) in favor of the newer and shinier "Specifically for the Short Magnum.." RL-17. I of course cannot find any kind of data for a Lazzeroni & RL-17, so I pull data for a 300WSM as the WSM is longer & the Lazz' is fatter, I guesstimate that capacity is very similar (correct me if I am wrong). So here is a short preface as I worked my way north: Lazzeroni Brass (I don't know who actually makes it) FED 215M RL-17 Barnes 168 TTSX ~.050 jump (IIRC) 90deg 4500' ele. 100yds 3 shot groups for pressure checks & accy potential 66.0- Poor accuracy no pressure 66.5- Accuracy improved no pressure 67.0- Well under MOA little sticky, no ejector mark or flat primer 67.5- Good accy, bolt sticky, no ejector mark or flat primer *Maximum* for me Load 4 more & Check accy @ 67.0: Good accy, 1 flyer?? (difference discovered in brass like new manufacturer or something??) Clean & Load 10 for 5 shot groups @ 67.0: Good accy & repeatable Load 5 more for accy & pressure checks w/ Chrono: THIS is the whole point behind my post, I am absolutely baffled. Chrono shows a [B][U]5 shot avg velocity of 3441fps[/U][/B] with a 168grn bullet!? Holy crap! I know pressure is getting close to max, but worked up at 90degrees everything is hotter than the blazes...:D So for those of you who use RL-17: Is this normal? I'm WELL aware of the old addage, "if something seems too good to be true.." but I've tried to prove myself wrong... 20-30 rounds of proofing on the same brass to again, detect pressure problems before ruining brass that is over $2.00ea. So what are your thoughts? I cannot find anything wrong with my findings, I will be reloading the last 5 cases again (4th or 5th loading) to verify velocity again this week (I hope). Thanks guys, [/QUOTE]
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RL-17 & WSM: Too good to be True?
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