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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30" 257 Weatherby - What can I expect.
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<blockquote data-quote="Hired Gun" data-source="post: 1968130" data-attributes="member: 1290"><p>I was really hoping for some actual 30" barrel experience.</p><p></p><p>110's are the heaviest bullet I ever tried or used. When I get to my goal I usually stop and then do a a few brass to destruction to make sure it will go at least 10 firings. Then for hunting big game I only use brand new brass. My 300 Wby gets a lot of varmint use and I have it up to 20+ with Ramshot Magnum and still getting 3150 fps with 200 to 215 grain Nosler and Berger bullets. It has been retired for a 30" 15 pound 338 Lapua with 300 grain Bergers. Now that is a squirrel gun that won't take no for an answer. It is my do it all gun for now. This 257 is just something I always wanted to try. </p><p></p><p>With the factory 26" barrel is would do the following. </p><p>100 grain Partitions gets 3750 fps. 400 yards or less talk about foul up a deer. OMG! It's like an RPG hit. </p><p>With 75 V-Maxs it literally shoots tacs .550" off the rifling at 3950 fps. On couple pound digger squirrels you not only a red mist but it blows the hair out of the hide in some places. First time I ever saw that. </p><p>With 110AB it is loafing shooting 3550 fps. A far better deer bullet but not really for bears at 580 yards. At 3550 I get 10 shots plus out of my brass annealing every 2nd or 3rd firing and using the Larry Willis die to press the brass back down near the belt. I don't do moly. I have seen the damage to stainless barrels just from overnight exposure combined with condensation so I leave that stuff to other guys to play with. </p><p></p><p>This was with CCI-250 primers and IMR7828 regular or SSC and Ramshot Magnum. This was before RL-33 came out. </p><p></p><p>4" more inches ought to be worth something. I'm really hoping for 3800+ with the 110AB bullets. We just finished it late last night and threaded it for a YHM Resonator suppressor. We still need to Cerakote the flutes to make it look factory. We hope to test it over the Lab Radar next week or weekend depending how busy we are. It might be awhile before we get to try all the stuff we want to try. </p><p></p><p>I have had the barrel a few years and finally found a slot to get it done. The mechanics car rarely gets worked on. In 11 years this is only the 4rth time we have got to do anything for ourselves. I am lucky to get out to varmint hunt once a year for the last few years. Hopefully this rifle will give me a reason to get out more often. Most of our spare time we are chasing sand drag records. </p><p></p><p>I still have another factory 257 Wby Accumark so we can do side by side testing to measure the difference in the two barrels. The chambers are a little different. The 26" Accumark is factory chamber with a few hundred rounds through it but still nice looking throat. The new one is a bunch tighter JGS Saami min spec and set to zero head space. The fired brass from the factory gun is no where near going into the new chamber.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 1968130, member: 1290"] I was really hoping for some actual 30" barrel experience. 110's are the heaviest bullet I ever tried or used. When I get to my goal I usually stop and then do a a few brass to destruction to make sure it will go at least 10 firings. Then for hunting big game I only use brand new brass. My 300 Wby gets a lot of varmint use and I have it up to 20+ with Ramshot Magnum and still getting 3150 fps with 200 to 215 grain Nosler and Berger bullets. It has been retired for a 30" 15 pound 338 Lapua with 300 grain Bergers. Now that is a squirrel gun that won't take no for an answer. It is my do it all gun for now. This 257 is just something I always wanted to try. With the factory 26" barrel is would do the following. 100 grain Partitions gets 3750 fps. 400 yards or less talk about foul up a deer. OMG! It's like an RPG hit. With 75 V-Maxs it literally shoots tacs .550" off the rifling at 3950 fps. On couple pound digger squirrels you not only a red mist but it blows the hair out of the hide in some places. First time I ever saw that. With 110AB it is loafing shooting 3550 fps. A far better deer bullet but not really for bears at 580 yards. At 3550 I get 10 shots plus out of my brass annealing every 2nd or 3rd firing and using the Larry Willis die to press the brass back down near the belt. I don't do moly. I have seen the damage to stainless barrels just from overnight exposure combined with condensation so I leave that stuff to other guys to play with. This was with CCI-250 primers and IMR7828 regular or SSC and Ramshot Magnum. This was before RL-33 came out. 4" more inches ought to be worth something. I'm really hoping for 3800+ with the 110AB bullets. We just finished it late last night and threaded it for a YHM Resonator suppressor. We still need to Cerakote the flutes to make it look factory. We hope to test it over the Lab Radar next week or weekend depending how busy we are. It might be awhile before we get to try all the stuff we want to try. I have had the barrel a few years and finally found a slot to get it done. The mechanics car rarely gets worked on. In 11 years this is only the 4rth time we have got to do anything for ourselves. I am lucky to get out to varmint hunt once a year for the last few years. Hopefully this rifle will give me a reason to get out more often. Most of our spare time we are chasing sand drag records. I still have another factory 257 Wby Accumark so we can do side by side testing to measure the difference in the two barrels. The chambers are a little different. The 26" Accumark is factory chamber with a few hundred rounds through it but still nice looking throat. The new one is a bunch tighter JGS Saami min spec and set to zero head space. The fired brass from the factory gun is no where near going into the new chamber. [/QUOTE]
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30" 257 Weatherby - What can I expect.
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