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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Question for gunsmiths
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<blockquote data-quote="RevJim" data-source="post: 1819740" data-attributes="member: 86754"><p>Well, I put 39rds of factory loads through the rifle today, cleaning every 5 rds with EezOx ( my method) then I started with my loads....R17 under the 120TTSX and the 110 Hammer. N560 under the 139 Scenar.</p><p> 39.6gr was mild, 2700fps, right at 1/2 inch. I then jumped to 45.3 and got average of 3260! Hard bolt lift, ejector mark. This is still way under QL, but these Mesas must have a pretty tigh chamber. My 300WM Mesa ended up about 2gr under QL prediction and still great speed. So, I will pull the rest, and creep up from 39>6 ( hey, I know better, but at least I didn't freeze my rifle up, ha) The 110 hammers with 44.5gr R17 got 3210 fps avg. Hard bolt lift. Then the 139 Scenars all shot well ( 1/2) from 47gr N560 to 48. The bolt lift was a little hard to lift, but no ejector marks or swipes on the case head. I am going to shoot the 47.5 and 48 some more. But these Scenars are very nice! 47gr was 2850; 47.5 & 48 identical 2893-2918fps. This is a 22" barrel. so I just wanted 2800fps, I may back down some more and creep back up. </p><p> I'm thinking of trying Varget under the 110 Hammer. Sure enjoyed myself though! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="RevJim, post: 1819740, member: 86754"] Well, I put 39rds of factory loads through the rifle today, cleaning every 5 rds with EezOx ( my method) then I started with my loads....R17 under the 120TTSX and the 110 Hammer. N560 under the 139 Scenar. 39.6gr was mild, 2700fps, right at 1/2 inch. I then jumped to 45.3 and got average of 3260! Hard bolt lift, ejector mark. This is still way under QL, but these Mesas must have a pretty tigh chamber. My 300WM Mesa ended up about 2gr under QL prediction and still great speed. So, I will pull the rest, and creep up from 39>6 ( hey, I know better, but at least I didn't freeze my rifle up, ha) The 110 hammers with 44.5gr R17 got 3210 fps avg. Hard bolt lift. Then the 139 Scenars all shot well ( 1/2) from 47gr N560 to 48. The bolt lift was a little hard to lift, but no ejector marks or swipes on the case head. I am going to shoot the 47.5 and 48 some more. But these Scenars are very nice! 47gr was 2850; 47.5 & 48 identical 2893-2918fps. This is a 22" barrel. so I just wanted 2800fps, I may back down some more and creep back up. I'm thinking of trying Varget under the 110 Hammer. Sure enjoyed myself though! :) [/QUOTE]
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