Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Waveslayer,You will create a donut. Get the K&M neck turning mandrel it has a cutter to cut the donut on the inside. You will have to cut the donut on the outside. Turn necks to 15 thousandths. I use the 21st century neck lathe. It works great
Retumbo is a little slower and Norma brass has a little less capacity. I'd start at 60 and work up.
Pm sentNet dumb question. To neck down 300 saum (Norma brass) what bushing(s) do I need, I have Redding Titanium Coated bushing in .293 .294 and .295 currently but i need to order any other sizes from Sinclairs and delivery is 3 weeks and $50USD for freight so I need to get it right first time as that makes the bushings rather expensive
7saum brass is non-existent currently here in New Zealand so I need to use 300saum which is readily available
I received my Xtreme Hunter a few days ago and decided to do some load testing with a bunch of 6.5 bullets I had around.
This was meant to be a mild load to break in the barrel and form the brass. Cases were Remington 7mm SAUM prepped by GA. Primers were standard Wolf LR primers I had around. Powder is 60.0 grains of H1000 measured on an RCBS ChargeMaster. OAL was 5-10 thousands off jam length. Barrel length is 24". Velocity was measured with Magnetospeed.
140 AMAX OAL 2.855” 2964 fps
139 Scenar OAL 2.822” 2948 fps
120 TSX OAL 2.745” 3021 fps
140 Match Burner OAL 2.850” 2934 fps
130 TSX OAL 2.740” 3020 fps
120 TTSX OAL 2.799” 3060 fps
123 Scenar OAL 2.825” 2981 fps
Accuracy was disappointing. The 120 TSX load printed a 100 yard 10 shot group at 1 inch. Others opened up to 1.5" - 3.0". Scope is a 3-24x March - I don't think that's the problem. Could be driver error since I'm not used to a rifle this light.
Can anyone else share accuracy they are getting from their factory Xtreme hunters and any loads they have worked up for it?
Thanks,
--Rootshot
p.s. Standard safety disclaimer on trusting other people's load data applies.
I had similar issues when I first got my saum. complete rifle / scope was less than 7lb and no braked (I took it off)
Was me. Not used to shooting such a light rifle off a Bipod. Bit of practise and all good now.
Mine was build as a lightweight rifle for Alpine Hunting, carried a lot more than fired
Great to hear. That's what I'm hoping. Did anything specifically work for you (e.g. tight hold vs, loose hold)?
I'm going to load up another 100 rounds of virgin Norma brass with the 123 Scenars and work on technique.
Thanks,
--Rootshot
Because the Reamer change seems to have a lot of guy’s concerned I thought I would measure different bullets to the lands in both chambers for everyone so everyone can understand the need for the change.
Measurements are COAL to the lands
Case: Rem 6.5 SAUM 4S
Old Reamer Most rifles built had this chamber through July of 2013
140 Berger Hybrid 2.960
140 JLK 2.965
130 JLK 2.965
130 Berger VLD 2.910
140 AMAX 2.880
New Reamer after July or 2013
140 Berger Hybrid 2.920
140 JLK 2.925
130 JLK 2.925
130 Berger VLD 2.860
140 AMAX 2.830
Basically a .040 - .050 depending on type of bullet
Thanks for the suggestions, I'd like to try Retumbo one day, but I was fortunate to find some H1000 off Gunbroker this morning for $30 per lb. I'll steer clear of the other powders.