7mm Rem Mag Norma MRP 150 Swift

SJB358

Ballistician
Dec 24, 2006
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I had been working with the Swift 150 a bit a few months ago. Kinda got some tips from you all they want some jump to the rifling. Well, I started at .050" and got bubkis.. Well, this time I backed them off to .1" and shot this today at 200 yards.



I was actually only looking for the most accurate powder charge during this range session, but if it repeats, I am pretty sure I am done. No sense in wasting more bullets, as I don't think I can shoot much better.. I'll have to work on the flyer though!

I ran three powder charges, 68, 69.5 and a 71. 68 was pretty good and 71 was opening up some. Overall, the old 7 still shoots. I will get a speed reading next time out, but it should be in the 3100 range.
 
Great work Scotty, a group like that at 200 yards will strike fear in anything animal you point that 7mm mag at :wink:!

Blessings,
Dan
 
Scotty I can't believe you missed that quarter 5 times. Other than that and the flier I would be satisfied also. :mrgreen:
 
The Scirocco has performed quite well for me. In my 7RM, the 150 grain Scirocco gave me great service for many years before I shifted to the 175 grain TBBC and/or the 175 grain PT. Can't recall anything that would stand up to the Scirocco, however.
 
I always wanted to try MRP in several calibers. It always seems to be high up on the performance ranks in the Q/L printouts you do.
Scott

Good shooting - That's a flyer?! :shock:
 
muleman":tfnyv11s said:
I always wanted to try MRP in several calibers. It always seems to be high up on the performance ranks in the Q/L printouts you do.
Scott

Good shooting - That's a flyer?! :shock:

Yeah, so far it looks real good Scott. It is very available for me here in Virginia. If the load reprints, I'll see if I can't lay into 8lbs of it.
 
DrMike":pog45yco said:
The Scirocco has performed quite well for me. In my 7RM, the 150 grain Scirocco gave me great service for many years before I shifted to the 175 grain TBBC and/or the 175 grain PT. Can't recall anything that would stand up to the Scirocco, however.

Seems real good me Mike. Did it's work as advertised. No complaints. Plus with accuracy like that, it's hard to walk away from.
 
I agree that flyer needs work :wink: . Very nice shooting buddy.
 
That looks really good Scotty, I hope we can get MRP here again like was said already it seems to always show well when you guys run Quickload.
 
I think this bullet will shoot well with any of the 7mm stand yes. It just likes to have some room. Man, when it comes together, its beautiful though.
 
I didn't pull off another group like yesterday, but it was still decent. I think I will tweak seating a little further in and see what happens.

At 200 yards



On a happier note, I ran nine rounds over the chrono. Got some very impressive speeds and I can't see a bad thing about the PSI's.

69.5 grains MRP, 150 Swift SII, CCI250, WW cases - 3234,3228, 3279, 3257, 3263, 3255, 3242, 3299, 3257

 
I'm impressed with that first group. My question about the Scirrocco II's is; How do they perform on thin skinned whitetail out to 400 yards? Do they provide traumatic terminal performance like a BT or SST? Or do they punch through pretty much like a heavy for caliber AccuBond?
 
Good stuff, Scotty. You are correct that velocities are impressive. I've observed that in other instances with the Sciroccos.
 
That's some very impressive speed Scotty - wonder what a 150ABLR would do with MRP?

Scott
 
That also explains why they performed a bit different than Lou's test, moving out about 150 fps faster. It does look like you are very close to a great load.
 
That's what I was thinking too Gerry. It might even be a little more as that is the factory rating for the load. Seems like it's very seldom factory ammo gets what they advertise.
 
Darkhorse":307pjt64 said:
I'm impressed with that first group. My question about the Scirrocco II's is; How do they perform on thin skinned whitetail out to 400 yards? Do they provide traumatic terminal performance like a BT or SST? Or do they punch through pretty much like a heavy for caliber AccuBond?

I think they will open up just fine. I think they would probably mimic the ABs for the most part.
 
SJB358":olbxzh74 said:
That's what I was thinking too Gerry. It might even be a little more as that is the factory rating for the load. Seems like it's very seldom factory ammo gets what they advertise.

Scotty, I was just thinking the same thing pal, now that I see your velocity :shock: ..Man, your pushing that swift probably 200fps faster than the factory loaded 150gr swift. It all makes sence now. Kinda like when I tested the AccuBond in the 270win and 270wsm, the 270win had more weight and a much nicer mushroom compared to the 270wsm.

Good shooting brother! :grin:

Lou
 
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