O.A.L With CAMPRO 124RN in your 9mm?

I use titegroup for my reloads and notice that Campro load data says 4.1- 4.4grns while Hodgdon load data says 3.6- 4.1grns for a 124grn RN. Why are the Campro loads higher? Has anyone tried the Campro recommended loads?

a while back, campro's website said to use 125gr loads with their 124gr plated projectiles.
when i used to load with titegroup i was using 4.1gr (shot over 10,000 rounds of these) without any issue
 
The Campro load data says 1.06 for 147gr. Why would 1.12 be better?

If the round is longer - would it feed more reliably? (I am about to start loading 2k of these).

All depends on the gun that it's in. Mine will feed 1.12 with 147 grain reliably. Some guns have to run 1.10 in order to feed and cycle.
 
I will try to determine max length in my IGB 40-9 barrel using an uncrimped dummy round and subtract .002.

That might be in the zone.
 
Besides feeding issues, how will oal affect your accuracy ? Like I mentioned earlier I seat 124g campro at 1.128- 1.130 with no issues. But haven't tried anything shorter or longer.
 
124gr CamPro
4.2gr Titegroup
1.125 OAL
S&W M&P9
1046fps 10 shot average over a Shooting Chrony @ 8 feet.

I've been very happy with 4.2gn TG + the 124gn Campro's as well;

IMG_1893_zpsm9aievr1.jpg
 
Thanks to all that replied, some nice worth while info here. CAMPRO's seem to be working very good for many shooters.
My two Glocks seem to cycle anything form 1.100" to 1.150" just fine. Now if I just had a set of young eyes maybe I could hit what I aim at. LOL's
 
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