Trimming Questions
09-21-2006 | 06:58 AM
#1
Thread Starter
Nontypical Buck
Joined: Aug 2004
Posts: 3,329
Likes: 0
From: Michigan
Trimming Questions
Hey guys,
I'm reloading for a 300 WM. I have a Lyman Universal Trimmer.
Yesterday I full length sized about 75 pieces of brass, cleaned them up and re-primed with winchester magnum primers. After I went through all this I measured a few and found hem to all be between .002 and .006 longer than the maximum case length.
So here come the questions:
1. Is that long enough to require trimming?
2. Can I trim brass that already has the primers in it?
3. What menthod do you guys recommend to get the trimmer set to the right lenth? Do you start big and continue cutting till you get where you want to be or do you use a caliper to measure the distance between the case holder and the cutting surface?
4. The manual says that max case length for the 300 is 2.62. So does that mean I need to cut the cases back to 2.60?
5. Anything else I need to be aware of?
Thanks
Tom
I'm reloading for a 300 WM. I have a Lyman Universal Trimmer.
Yesterday I full length sized about 75 pieces of brass, cleaned them up and re-primed with winchester magnum primers. After I went through all this I measured a few and found hem to all be between .002 and .006 longer than the maximum case length.
So here come the questions:
1. Is that long enough to require trimming?
2. Can I trim brass that already has the primers in it?
3. What menthod do you guys recommend to get the trimmer set to the right lenth? Do you start big and continue cutting till you get where you want to be or do you use a caliper to measure the distance between the case holder and the cutting surface?
4. The manual says that max case length for the 300 is 2.62. So does that mean I need to cut the cases back to 2.60?
5. Anything else I need to be aware of?
Thanks
Tom
09-21-2006 | 04:08 PM
#3
Guest
Posts: n/a
RE: Trimming Questions
ORIGINAL: statjunk
Hey guys,
I'm reloading for a 300 WM. I have a Lyman Universal Trimmer.
Yesterday I full length sized about 75 pieces of brass, cleaned them up and re-primed with winchester magnum primers. After I went through all this I measured a few and found hem to all be between .002 and .006 longer than the maximum case length.
So here come the questions:
1. Is that long enough to require trimming?
2. Can I trim brass that already has the primers in it?
3. What menthod do you guys recommend to get the trimmer set to the right lenth? Do you start big and continue cutting till you get where you want to be or do you use a caliper to measure the distance between the case holder and the cutting surface?
4. The manual says that max case length for the 300 is 2.62. So does that mean I need to cut the cases back to 2.60?
5. Anything else I need to be aware of?
Thanks
Tom
Hey guys,
I'm reloading for a 300 WM. I have a Lyman Universal Trimmer.
Yesterday I full length sized about 75 pieces of brass, cleaned them up and re-primed with winchester magnum primers. After I went through all this I measured a few and found hem to all be between .002 and .006 longer than the maximum case length.
So here come the questions:
1. Is that long enough to require trimming?
2. Can I trim brass that already has the primers in it?
3. What menthod do you guys recommend to get the trimmer set to the right lenth? Do you start big and continue cutting till you get where you want to be or do you use a caliper to measure the distance between the case holder and the cutting surface?
4. The manual says that max case length for the 300 is 2.62. So does that mean I need to cut the cases back to 2.60?
5. Anything else I need to be aware of?
Thanks
Tom
To set up you trimer, there should be two adjusment rings, one fine and the other course. YOu want to play with your trimmer and have the find adjusment set back as far as possible. So turn the small ring counterclock a few times, this will give you adjustment for the cut. Push the cutter against the face of a case that needs trimmed. Tighten down the screw holding the large adjument (coarse) in place with teh cutter against the case mouth. Now screw down the small in 1/4 turns and tighten down and cut. Measure and adjust and cut. Do this until you get it right for two cases.
09-22-2006 | 12:46 PM
#5
Nontypical Buck
Joined: Feb 2003
Posts: 1,032
Likes: 0
From: Olive Branch MS USA
RE: Trimming Questions
Don't know anything about your trimmer, so I don't know if it's okay to trim them with primers inserted. I would think so, though. I use a Wilson, but have never trimmed brass that was primed.
As to trim length, the manuals suggest a trim-to length of 2.610" for the .300 Win mag. That's what I trim to with mine. Shouldn't be necessary and probably not advisableto trim to 2.600". The neck on a .300 WM is short enough as it is.
As to trim length, the manuals suggest a trim-to length of 2.610" for the .300 Win mag. That's what I trim to with mine. Shouldn't be necessary and probably not advisableto trim to 2.600". The neck on a .300 WM is short enough as it is.
09-22-2006 | 01:26 PM
#6
Guest
Posts: n/a
RE: Trimming Questions
ORIGINAL: Solitary Man
Don't know anything about your trimmer, so I don't know if it's okay to trim them with primers inserted. I would think so, though. I use a Wilson, but have never trimmed brass that was primed.
As to trim length, the manuals suggest a trim-to length of 2.610" for the .300 Win mag. That's what I trim to with mine. Shouldn't be necessary and probably not advisableto trim to 2.600". The neck on a .300 WM is short enough as it is.
Don't know anything about your trimmer, so I don't know if it's okay to trim them with primers inserted. I would think so, though. I use a Wilson, but have never trimmed brass that was primed.
As to trim length, the manuals suggest a trim-to length of 2.610" for the .300 Win mag. That's what I trim to with mine. Shouldn't be necessary and probably not advisableto trim to 2.600". The neck on a .300 WM is short enough as it is.
