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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Reamer question
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<blockquote data-quote="AZShooter" data-source="post: 2734903" data-attributes="member: 5219"><p>Good to hear from someone who is considering the reamer. IMO it is an important part of a build that some don't consider. Seems like many just tell the gunsmith to make them the rifle.</p><p></p><p>My friend and I own lathes and ordered 18 reamers in various chamberings. We often talked to Dave Kiff, Pacific Tool and Gauge, about the specifications.</p><p></p><p>I own a 300 RUM reamer I bought with the specs that Dave said worked best. While many reamers these days use a 1 degree 30 minute angle in the throat area the Dave told me the 1 degree angle worked better with the 300 RUM.</p><p></p><p>I only used that reamer once, so far, and with 230 gr Bergers it is a shooter! My rifle is a post 64 model 70 with a Wyatt's mag box. OAL is 3.760" Wouldn't worry too much about the OAL and what the jump to the lands might be with your setup. In my experience the hybrid bullets are not finicky where they are seated.</p><p></p><p>Now for the interesting part: A friend bought a Proof Research custom in 300 RUM. I used the 230 and worked up a load for his rifle. Just like mine I was able to come up with a very accurate load in one range session! I was so impressed I called Proof to talk to a technician and compliment them. I asked what reamer they used and discovered it is the same reamer as mine! Yes, they had Pacific Tool and Gauge make theirs as well.</p><p></p><p>I am looking at the reamer print I own and see there is no special number or name for it other than 300 Rem Ultra Mag. If you were to order one from PT&G I would suggest you ask for the same one Proof uses and perhaps mention that it is using a 1 degree throat angle.</p><p></p><p>I could take a picture and send you the reamer print if you like.</p><p></p><p>Regarding how many reamers: If the gunsmith takes his time the finish reamer will do it all. I asked Curt Krum of Dave Miller Co that question and he said that they only use a finish reamer. He said just take your time and clean chips from the reamer often.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 2734903, member: 5219"] Good to hear from someone who is considering the reamer. IMO it is an important part of a build that some don't consider. Seems like many just tell the gunsmith to make them the rifle. My friend and I own lathes and ordered 18 reamers in various chamberings. We often talked to Dave Kiff, Pacific Tool and Gauge, about the specifications. I own a 300 RUM reamer I bought with the specs that Dave said worked best. While many reamers these days use a 1 degree 30 minute angle in the throat area the Dave told me the 1 degree angle worked better with the 300 RUM. I only used that reamer once, so far, and with 230 gr Bergers it is a shooter! My rifle is a post 64 model 70 with a Wyatt's mag box. OAL is 3.760" Wouldn't worry too much about the OAL and what the jump to the lands might be with your setup. In my experience the hybrid bullets are not finicky where they are seated. Now for the interesting part: A friend bought a Proof Research custom in 300 RUM. I used the 230 and worked up a load for his rifle. Just like mine I was able to come up with a very accurate load in one range session! I was so impressed I called Proof to talk to a technician and compliment them. I asked what reamer they used and discovered it is the same reamer as mine! Yes, they had Pacific Tool and Gauge make theirs as well. I am looking at the reamer print I own and see there is no special number or name for it other than 300 Rem Ultra Mag. If you were to order one from PT&G I would suggest you ask for the same one Proof uses and perhaps mention that it is using a 1 degree throat angle. I could take a picture and send you the reamer print if you like. Regarding how many reamers: If the gunsmith takes his time the finish reamer will do it all. I asked Curt Krum of Dave Miller Co that question and he said that they only use a finish reamer. He said just take your time and clean chips from the reamer often. [/QUOTE]
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