FMJ FOC Regrets

lacseul

FNG
Joined
Feb 17, 2017
Messages
20
Location
WI
I've got a new dozen to mess around with and wanted to go with the 50gr brass insert - these things seem heavy! I was wondering if anyone regretted it? Then threw out arrows and started over? My current arrow is FMJ 5mm (340) at 30in with stock insert (13gr I think) 100gr broadhead and it flies great. Now I'm second guessing myself before I make the call to glue in the brass - anyone have any advice?
 

Ratbeetle

WKR
Joined
Jul 20, 2018
Messages
1,141
I shoot 300 fmjs with 75gr inserts and 100gr heads. Not the flattest trajectory but I like to stay inside of 60 yards so it's not really a big deal to me. They hit with authority and I'm not worried about adequate penetration on the chance of a less than perfect shot.
 

McD18

FNG
Joined
Apr 13, 2019
Messages
58
Location
South Texas
You could just build a couple with the inserts and see how they fly. If you don't like it then take 'em out and go back to your old set up.

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milunchbox

Lil-Rokslider
Joined
Dec 5, 2014
Messages
179
Location
el mitten
I shoot carbon injections @ 29in and ethics archery insert/outsert. They are about 485 i cant remember right now. This is out of a 64lb carbon matrix. They shoot 267fps. They fly like lasers and hit like a bulldozer.
 

gretch6364

Lil-Rokslider
Joined
Sep 5, 2017
Messages
222
Location
Aspen
I've got a new dozen to mess around with and wanted to go with the 50gr brass insert - these things seem heavy! I was wondering if anyone regretted it? Then threw out arrows and started over? My current arrow is FMJ 5mm (340) at 30in with stock insert (13gr I think) 100gr broadhead and it flies great. Now I'm second guessing myself before I make the call to glue in the brass - anyone have any advice?

Not a ton of information in your post related to what bow you are currently shooting. Personally, I would do the math on it and see where you are going to be. For me personally, I try to shoot as heavy an arrow as I can and still chrono in the 260-270 fps range.

Currently at 271 fps with 529g at 72lbs. Next season I will probably come down to 68lbs and see where she chronos.
 
Joined
Jun 21, 2019
Messages
2,555
Location
Missouri
Use hot melt to give yourself the ability to swap inserts down the road. I secure all my inserts with Bohning Ferr-L-Tite Cool Flex for just this reason. I've had no problems with hot melted inserts pulling out, but if that were a concern, you could epoxy them in after dialing in your setup.
 
Joined
Jun 26, 2017
Messages
505
Make sure your not underspined adding weight up front.

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Joined
May 6, 2018
Messages
9,730
Location
Shenandoah Valley
Order 150 or 175 grain practice heads. That's the easiest thing I have found to do. That gives you an idea of what your trajectory will be. Might be hard to find them for 5mm. But if you are shooting a foam target it shouldn't matter. It's hateful with a bag target.
 
OP
lacseul

lacseul

FNG
Joined
Feb 17, 2017
Messages
20
Location
WI
Not a ton of information in your post related to what bow you are currently shooting. Personally, I would do the math on it and see where you are going to be. For me personally, I try to shoot as heavy an arrow as I can and still chrono in the 260-270 fps range.

Currently at 271 fps with 529g at 72lbs. Next season I will probably come down to 68lbs and see where she chronos.
Shooting a Prime Centergy 64lbs / 263 fps / 30in draw / current FMJ is 495gr -
 
OP
lacseul

lacseul

FNG
Joined
Feb 17, 2017
Messages
20
Location
WI
Thanks fellas - I was planning on doing 2 (50/75) - fmj's are pricey to test!
 

KyleR1985

WKR
Joined
Jul 28, 2019
Messages
507
buy a full set of test field points 50-300gr are available - best money you can spend in your situation.
 
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