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bjornborud
I shot 160 rounds loaded with the XCB bullet today, giving my XCB rifle a good workout. What I was doing was in no way a TEST, in fact I won’t be using that word much anymore, since a test implies laying down baselines, using a comparison protocol, a minimum amount of shots, etc. etc.
Rather than getting all complicated I’ll be doing some shooting, explaining and observing over the next few months, and I invite you shooters out there to share your comments and critiques here on the board. No “rights” or “wrongs”, I’ll be trying out a multitude of variables in my quest to make my rifle shoot as well as she is capable of.
When I did my “HV lube test” the other day, Geargnasher commented that I hadn’t shot sufficiently large strings for the bore to get conditioned with the lube. I have to admit that he most likely is right, and today I wanted to give this famous lube a fair shake. At the end of the day a hundred rounds lubed with FWFL had gone down the bore, and here are some of the highlights:
First I shot a few mild loads – 13 grains of Unique. After the first group of 6 I went directly into 3 strings loaded with 28 grains of Varget. The first 2 groups, 15 shots each, were filled with 3/4 gr. Dacron, with the third group (10 shots) I used Puff-Lon as a filler. This is a powdery substance that is compressed (by 20%) between powder and bullet base. I could not detect much difference in accuracy between the two methods.Then I went straight into some High Velocity stuff. The lube held up very well as the target pictures show. I didn’t set up my chronograph; I have ordered this contraption and it’s being delivered Wednesday:
It should make documentation much easier, since I like to gather data from all my shooting.
The numbers in parenthesis next to the HV groups are MVs chronographed with the identical loads earlier, when the rifle’s barrel was 3 1/2″ shorter. It should give a good reference.Here are the targets from several of the strings shot with Felix lube:
At this point I scrubbed the bore thoroughly, and changed over to a lube I hadn’t tried before: White Label 2700+, from Lars’ Lubes. I had loaded several strings from mild to wild, and to say that I was impressed with this lube would be an understatement. In earlier conversations with Larry Gibson it was mentioned that this lube could be too stiff and possibly leave lube in the grooves upon muzzle exit. Because of the XCB bullet’s shallow grooves I decided to give it a go and it appears the lube performs as advertised.
With this lube I also mixed it up and loaded several bullets cast from pure linotype. Those are indicated in the target photos.
All in all I was very pleased with the way both rifle and loads performed. Not pictured are several groups shot with experimental powders, that didn’t work out well. These loads bombed with both lubes, so no fault there. Hodgdon Superformance just doesn’t shoot well at the velocities we were trying to attain, and more experimenting is needed in this area.
bjornborud-
Replies
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sgt.mike
When Tim came up with the uniformer I tried it. easy peasy I made the comment even a trained monkey could do for a pun of my avatar.
The concept brought out by Detox with Tim doing the a refinement process to make sure the checks are as exact as possible, looks like a winner thus far.Really good results Tim, seems any wobble that a ordinary drill press might have is negated or kept to a null.
timmalcolm
Very good Tim, looks like uniformed GC’s makes enough a difference that would be worth the time, especially for those seeking HV and accuracy with cast. Will have to go check and see what Heisenberg thinks about this. Good job!
I think he would say he’s already been there and done that, but since he’s dead, there’s really no way to be “certain”. LOL!
I really loved shooting that rifle, except the scope needs to come back, and that can’t happen do to the mounting method (I really need a solid weaver rail so I can use my quick detach Tally rings) and the 3lb trigger.
I took the rifle apart this morning and worked on the trigger till I got it to 12oz, and it won’t pop if I slam the bolt down. Jewel doesn’t make a trigger for the Mauser, so unless I buy a Bix’n Andy or some such (almost worth the $400 price tag) this is about as good as it gets with a safe single set trigger.
Can’t wait to shoot it again!Next time I get to the range, I’m going to do this again. Some of the 20 non-uniformed bullets I had loaded got used up zeroing the the scope etc etc so I didn’t get two ten shot groups with those.
Not only that, but I would rather shoot them than throw them away or melt them down.I also loaded up 5 bullets of my house alloy (95.6/2.2/2.2 certified) to see how the rifle likes it.
Air cooled, It’s 14bhn pretty consistently after more than two weeks.
Water dropped it measures 28-30bhn.
The alloy mixture is 95.6/2.2/2.2 which is a real turd to say, so I just named it “house” because it’s what I use for most everything.All my 45-70 bullets are cast out of that, and air cooled.
All my 44 Mag bullets are cast out of that and water quenched.
358 winchester is air cooled
308 is water quenched.
It’s a very tough and versatile alloy, that I can tune to my needs.michaelburns
daveridenour
Very good Tim, looks like uniformed GC’s makes enough a difference that would be worth the time, especially for those seeking HV and accuracy with cast. Will have to go check and see what Heisenberg thinks about this. Good job!
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I really loved shooting that rifle, except the scope needs to come back, and that can’t happen do to the mounting method (I really need a solid weaver rail so I can use my quick detach Tally rings) and the 3lb trigger.
I took the rifle apart this morning and worked on the trigger till I got it to 12oz, and it won’t pop if I slam the bolt down. Jewel doesn’t make a trigger for the Mauser, so unless I buy a Bix’n Andy or some such (almost worth the $400 price tag) this is about as good as it gets with a safe single set trigger.
Can’t wait to shoot it again!Tim,
Thanks for posting your test results and report. That’s really good information.
I have a Kepplinger single set trigger on a Winchester M70, and really like it. A buddy of mine has one on a Remington 700, and he really likes it too.
The Kepplinger single set trigger for the M98’s has an unset pull weight of 3 lbs, and a set pull weight of 6 oz. You ought to take a look at one of those too. Go to: http://www.brownells.com/rifle-parts/triggers-parts/triggers/m-98-single-set-trigger-w-safety-sku495100198-7667-19215.aspx?sku=495100198
Dave
lar45
SwedeNelson
Had a opening so we ran them
We have the 310 165Gr. FN 30XCB back in stock
http://noebulletmolds.com/NV/index.php?cPath=30&sort=2a&page=2&osCsid=v3oodoa0f8fiifbt3f9nhfcro4Bullet maker, maker
Al Nelson
sgt.mike
timmalcolm
michaelburns
daveridenour
lar45
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