Help Me With This Reamer Print 300 WSM
- Thread starter INTJ
- Start date
Ledd Slinger
Silver $$ Contributor
This is your freebore measurement.
I almost bet your going to have extraction problems after a firing or two. The .200 line should be .555 minimum. Matt
Thanks. I don’t remember the throat being that short, 220 SMKs worked great. I guess I need to get a throating reamer.
One year I shot five screamer groups, set two club group agg records, and won a bunch of matches with a barrel cut with this reamer. No extraction issues in 800 rounds. Back then I used standard Redding dies. That said I’ll be getting a custom die for this one.
The only spec I remember giving Dave back in 2005 was the neck diameter. Everything else was his call. Maybe I can get him on the phone.............
Also, I had a hunting rifle chambered with this reamer. A couple hundred rounds through it with no extraction issues.
Regardless , you now have me wondering if I should get a new reamer......
One year I shot five screamer groups, set two club group agg records, and won a bunch of matches with a barrel cut with this reamer. No extraction issues in 800 rounds. Back then I used standard Redding dies. That said I’ll be getting a custom die for this one.
The only spec I remember giving Dave back in 2005 was the neck diameter. Everything else was his call. Maybe I can get him on the phone.............
Also, I had a hunting rifle chambered with this reamer. A couple hundred rounds through it with no extraction issues.
Regardless , you now have me wondering if I should get a new reamer......
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Maybe you got a small die and lucked out. When we used a .554 at .200 line reamer everybody had trouble. Usually started around the second or third firing. Matt
I wouldn't change a thing , doing as good as you did . Not even the die . Just keep it simple and upgrade with newer bullet offerings .
Like previous posted , 050 but I use the .064 number . Usually everyone trims the case to specs and I include the angle length in determining freebore .
I guess it is only three tenths tighter than .555. I could just indicate in the barrel with a little runout and get the chamber bigger....... 
I typically do not run hot loads, so that may have been part of it. I ran the 220s at 2740 fps and run the 168 TTSXs in the hunting rifle at 3000.
Still, wouldn't a custom die solve any potential extraction issues?
Also, I’m thinking I need a longer throat. I have a 1x9 twist barrel I am going to try as well as trying Sierra 200s (2231), Sierra 210s, Berger 200.20x, and Berger 215s. I am guessing a .250 throat?
Then again, in 2006 I tried both 210 Berger’s and 210 SMKs, but the rifle like the 220s.
BTW, this will be my bad weather rifle, a light gun. Bat B is on order. I have the Benchmark barrel, and will get one of Alex stocks.
I typically do not run hot loads, so that may have been part of it. I ran the 220s at 2740 fps and run the 168 TTSXs in the hunting rifle at 3000.
Still, wouldn't a custom die solve any potential extraction issues?
Also, I’m thinking I need a longer throat. I have a 1x9 twist barrel I am going to try as well as trying Sierra 200s (2231), Sierra 210s, Berger 200.20x, and Berger 215s. I am guessing a .250 throat?
Then again, in 2006 I tried both 210 Berger’s and 210 SMKs, but the rifle like the 220s.
BTW, this will be my bad weather rifle, a light gun. Bat B is on order. I have the Benchmark barrel, and will get one of Alex stocks.
LA50SHOOTER
Sworn To Protect The Constitution.
One thing I noticed on the print, it's showing a 30 degree shoulder angle.
Not saying it can't be made work but the 300 WSM has a 35 degree shoulder.
I'm surprised that with as short of lead/throat that it has it shot 220 SMK's as good as it did.
Not saying it can't be made work but the 300 WSM has a 35 degree shoulder.
I'm surprised that with as short of lead/throat that it has it shot 220 SMK's as good as it did.
I don’t think the shoulder is really 30 degrees. I don’t notice the shoulder angle changing after firing. I’ll take some pics tonight of new and fired cases. Also, when I measure the reamer from the end of the neck to the end of the cutting flutes, I get .307”. I am thinking the reamer drawing is off........
Probably, a custom die would take care of it. I used the wrong word, instead of extraction, I should of said bolt click. The WSM is a great cartridge, very accurate. I broke 7 world records and 5 club records with it, including the 10 match heavy gunI guess it is only three tenths tighter than .555. I could just indicate in the barrel with a little runout and get the chamber bigger.......
I typically do not run hot loads, so that may have been part of it. I ran the 220s at 2740 fps and run the 168 TTSXs in the hunting rifle at 3000.
Still, wouldn't a custom die solve any potential extraction issues?
Also, I’m thinking I need a longer throat. I have a 1x9 twist barrel I am going to try as well as trying Sierra 200s (2231), Sierra 210s, Berger 200.20x, and Berger 215s. I am guessing a .250 throat?
Then again, in 2006 I tried both 210 Berger’s and 210 SMKs, but the rifle like the 220s.
BTW, this will be my bad weather rifle, a light gun. Bat B is on order. I have the Benchmark barrel, and will get one of Alex stocks.
score record at Williamsport this year. Matt
LA50SHOOTER
Sworn To Protect The Constitution.
- Okay Ringo, I see 35 back there at the rear, so what is the "30" ?
PTG's prints leave something to be desired IMO and so did every reamer that I got from them as well.
Maybe the radius at the junctions. It can never be zero because it needs radius on it. Matt
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