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I was at The Arms Room picking up a rifle the other day, and of course had to look at the 1911 offerings.

One that caught my eye was a compact Springer that had slots cut in top of the slide and holes drilled into the barrel. It looked cool (reminded me of a '32 roadster with six-pack stacks sticking out of the hood), but got me thinking. With an already short barrel, wouldn't such "porting" cause problems with velocity and burn?

Would it do enough to offset barrel rise to give up velocity?

TLE2 wrote:I was at The Arms Room picking up a rifle the other day, and of course had to look at the 1911 offerings.

One that caught my eye was a compact Springer that had slots cut in top of the slide and holes drilled into the barrel. It looked cool (reminded me of a '32 roadster with six-pack stacks sticking out of the hood), but got me thinking. With an already short barrel, wouldn't such "porting" cause problems with velocity and burn?

Would it do enough to offset barrel rise to give up velocity?

That's a V10 Ultra Compact 3 1/2" barrel. I have one. Yes, it reduces muzzle flip, but I believe the velocity loss is negligible. (after grip change below)

I was looking at it too for curiousity. I have heard, not known, these models had issues with cyclying and accuracy. Can you give guidance on your experience?

Gary

gwashorn wrote:I was looking at it too for curiousity. I have heard, not known, these models had issues with cyclying and accuracy. Can you give guidance on your experience?

Gary

+1

I have about 500 rds thru it this year, and I have never had a single issue with it, with ball or SD ammo. It's dead on accurate, but I rarely shoot it past 21'. BTW, it has an aluminum frame. It's a 1999 model, and Springfield did some finish repair on the slide (no charge) after I told them in writing, and on the phone, I had no idea how may owner's before me there were. They also replaced some small parts for free. It is easier to control the gun with the original Pachmayr rubber grips, than with the wood grips.They just about glue the gun to your hand. While not as attractive, I'll probably put them back on. As for accuracy overall, I have shot many 1911 models, so if you are looking for 1" groups from a bench at 25 yds, get a 5" Ed Brown, or Wilson Combat. if you want accurate SD, I highly recommend this gun. That said, some are concerned with the extended muzzle flash due to the porting, both for injury (burn), and for night vision. I don't believe it is harmful for either. YMMV

Everything you may want to know about porting can be found here'

[url]http://www.magnaport.com[url]

I am thinking of sending my LCR in 357 to them and see what happens....

Im not sure what other effects other than reduced muzzle flip you might encounter.

That being said ive seen a slot ported PF-9