RFB initial thoughts, Range report ***JANUARY 31st ammo test at bottom of OP***

I was planning on breaking mine in with old school oil, and then giving her the Eezox treatment - after a solid cleaning. What do you guys think - good/bad idea, does it really matter? My line of thinking is that rifle break-in parallels breaking in an engine with anything but a full synthetic oil. Any thoughts? :confused: I've used Militec treatment on a few new firearms with out any issues at all, but I don't want any evil voodoo to befall me and the new RFB :redface:
 
Has anyone tried MFS (russian) zinc plated steel cased ammo in RFB??
Different people has different opinion, some say a certain no-go while others say not bad for barrel brake-in & plinking purpose as long as you don't shoot an overheated barrel & clean all the parts (bolt face & chamber) thoroughly. I guess the general notion of no-go formed from earlier lacquer or coated steel cases later the cases were coated with polymer & the problem was eliminated to large extent, now with a more durable & reliable zinc coating it should work just fine, IMO.
 
I seem to recall Kel-tec saying no steel cased ammo in the RFB. I'd have to double check to be sure.
 
So... am I the first Canadian to shoot something other than paper with an RFB yet?
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I did some more load development today - looks like the last time I was out must have either been a lucky day or it may be more accurate when cycled every time by hand, because I was not able to duplicate the sucess I had before.
 
One thing to consider guys. We probably should be doing a crimp for these rounds. I'm wondering if the bullet is getting pushed back when the round is cycled into the action. This might explain some of the strange results.


A NF scope on your RFB. :cheers: I have one of those on my AR10. Very nice.
 
Epoxy7 said:
One thing to consider guys. We probably should be doing a crimp for these rounds. I'm wondering if the bullet is getting pushed back when the round is cycled into the action. This might explain some of the strange results.


A NF scope on your RFB. :cheers: I have one of those on my AR10. Very nice.
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Ya, I robbed that NF off my M14 with ARMS 18 for the time being - hence why the front ring is set so far back.

As for crimping, I have not been crimping, but I neck size the brass with a bushing that is a few thou smaller than what it normally ought to be so that I have major neck tension. I think it holds the bullets in place pretty good, but I should eject a chambered round and measure to see if there is any difference. Crimping might be required, but I don't think it is my problem.

Today I tried shooting with the rifle in one of those 'shooting rests' - can't think of the name for them right now. It felt pretty solid, but that is the only difference I can think of. All my previous work was done off a bipod and rear bag.

I am starting to collect enough once fired brass so that I will soon be able to do some load development using fireformed neck sized only brass - yes neck sizing only, no the sky will not fall down on your heads if you try it too. Using fireformed/neck sized only brass vs. new brass shrunk my tavors groups by maybe 20%
 
My first shots with the RFB...

I've had this carbine for a while, but haven't had an opportunity to get some rounds through it till today. We were visiting friends out of town with substantial property, so we set up a small improvised 100m range. Bench wasn't the best, but the rest mounted the rifle solidly enough. I still can't get over the compactness of the RFB.

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We did the standard 30 round multiple cleaning, barrel break-in with that zinc plated MFS ammo, and dialed it in a little during, with a final touch up afterwards. Here's a 15 shot group before I put it away for the day. The optic is only 4x, so I just held the same location for all shots. I'm not going to adjust anymore until I start throwing the intended 168 grain ballistic tips through it. Overall I'm quite happy...

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And since the only critters we saw today were out of season turkeys, I had to shoot this very dangerous cinder block...


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Have to say I like this gun a lot... Trigger was better than any of my other bullpup carbines, recoil is negligible, function was perfect with zero hiccups, and accuracy was more than I expected from this break in ammo...
 
Thanks for the speedy reply. I'm sold ;) That's some great break in shooting :) Good capture of the cider-blocks timely death. Now to get myself on the list for the next shipment.
 
Hey Stormtrooper1015, NICE! And, after shooting the RFB a bit @ the range now, I will have to get my hands on one of the small 5 rounders so I can 'better' bench the rifle. With the 20/5 round that came with it, you can't get the rifle on the rear sandbag easily... And the rear sandbag occasionally hits the mag release, allowing the mag to drop down & the bolt closes on an empty chamber, ha ha. When that happens, it sure shows you IF you flinch, click... he he

Cheers
Jay
 
Great pictures. The cinder block blowing up is awesome.

Which ammo did you use for break in? It seemed to like it. It would be nice to have a not so expensive round to blow up rocks, cinder blocks etc with this rifle.
 
Yupper. I was more than surprised by the cheap Russian ammo. Cycled perfectly, hit well, was clean, and blew the snot out of cinder blocks. Shot another block with some 62 grain federal bonded 223 ammunition and it took two rounds to make a little hole in it. Clearly the 308 had more explosive cinder block dooming performance!

Cleaned the RFB today and it really wasn't dirty. The only debris inside was from whatever sealant was used around the primers, and it just wiped away.

Gas setting was at B+7. I was able to go higher, and the gun would cycle, but wouldn't consistently lock the action open on the empty mag.
 
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