Switching from 124 to 147

ASTRYX

ASTRYX

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Hi,

I am a new shooter and shoot in production with a CZ Shadow 9mm.

I have been shooting 124 grain bullets the last year and was thinking of switching to 147 grain this year.

I reload on a Dillon R550B.

Any suggestions as to which 147 bullet I should get?

Any other suggestions would be appreciated to (gun mods, powder, OAL, etc).

Cheers!
 
The above or speer 147 plated or berrys 147. Bdx is supposed to have a jsp..but not sure when that will be available....by the spring.
 
the advantage of the 147's if the bullet is moving slower so less energy to deal with (e=m*v*v). my personal feeling is that the gun wants to push more straight back then twist and flip when using 147's. others will of course disagree. I always suggest people try and go with what feels good to them.

As for which 147 to use i would suggest the Berry's. while they are a bit softer then the Campros they are much more uniform in weight, diameter and OAL.

Now when i get the BDXs i will let you know.
 
IMHO the OP is going the wrong way. Due to CZ's rifling twist rate, 115 grain bullets will be the most accurate.
 
I agree with Walter,...147gr bullet with same PF as 124gr will feel like more of a push than flip in muzzle. Great for knocking down steel as well.
 
Aqualung said:
IMHO the OP is going the wrong way. Due to CZ's rifling twist rate, 115 grain bullets will be the most accurate.
Click to expand...

Certainly the 1 - 10 twist favours the 115/124 gr bullet. For action shooting the softer push might out way the potential loss of accuracy though. When loading 147 gr bullets down to close to 125 PF my Shadow tended to choke with the factory recoil spring. If the OP goes to 147gr bullets I would suggest a lighter recoil spring to ensure cycling.

Take Care

Bob
 
Thanks for all the information.

I am going to grab a box of Berry 147 and give it a shot.

I am not sure what the following rule means:

"Original parts and components offered by the OFM as standard equipment, or as an option, for a specific model handgun on the IPSC approved handgun list are permitted ..."

I am sure there are many interpretations.

I think I may also buy a box of 115 and give it a shot ... who knows, maybe Aqualung is right ... won't know until I try!
 
ASTRYX said:
Hi,

I am a new shooter and shoot in production with a CZ Shadow 9mm.

I have been shooting 124 grain bullets the last year and was thinking of switching to 147 grain this year.

I reload on a Dillon R550B.

Any suggestions as to which 147 bullet I should get?

Any other suggestions would be appreciated to (gun mods, powder, OAL, etc).

Cheers!
Click to expand...

I've tried several brands of 147's out of my Shadow and my Shadow don't like 147's... do a search on my old threads I started and read up and see some range report pictures.

If you do try out some 147's, I'd suggest getting a couple of handful of each brand IF you can and try them out before going out and buying the 1000+ and finding out your Shadow doesn't like them.

Honestly... at the range yes I can feel the SLIGHT difference in reduced recoil but during a match I can't tell the difference. But accuracy wise with my experience using 147's.... from 10m to 20m you may be forgiven but shoot a match that has targets passed 25m to 40m and it could me the difference from a C to a D or worse a Mike.

Just my 2 cents.
 
Aqualung said:
So you're counselling the OP to cheat! :eek:
Click to expand...

No just giving him some good advice. Lighter recoil springs are available through CZ. I don't recall the OP indicating what sport, if any he plans to shoot in either. Both IPSC an IDPA allow for the changing of recoil springs. IPSC I believe still insists on factory springs. IDPA doesn't. Most Shadows won't run at a PF of 130ish with 147 gr bullets using the recoil spring that comes with the gun.

Take Care

Bob
 
The ROC said:
Honestly... at the range yes I can feel the SLIGHT difference in reduced recoil but during a match I can't tell the difference.
Click to expand...
This!
Shooting from the bench I can feel it, but not under match pressure. The Zero 125 and BDX 124 work very well in my Shadow. Mike's are entirely my fault :(
 
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