RickyH Posted March 31, 2014 Share Posted March 31, 2014 What is a good OAL for a cz that does not have the barrel reamed? Link to comment Share on other sites More sharing options...
katit Posted March 31, 2014 Share Posted March 31, 2014 I read 1.1 but personally load to 1.165 (RN plates 115/124gr). It all depends on your gun and type of bullet you use. Just do a plunk test to see. Link to comment Share on other sites More sharing options...
kneelingatlas Posted March 31, 2014 Share Posted March 31, 2014 Bullet profile makes all the difference in the world. I've loaded some 124gr hollow points which hit the rifling at 1.1" and 115gr plated round nose which didn't at 1.185" (although the tips started to catch in the front of the mag at that point).For my 9 Major loads I like 1.150" with an Xtreme plated 115, for Production I use a cast 147 at 1.135" Link to comment Share on other sites More sharing options...
Czhase Posted March 31, 2014 Share Posted March 31, 2014 I shoot Bear Creek 125 gr RN moly. They load very short, they hit the rifling around 1.070-1.075. I load them to 1.060 Link to comment Share on other sites More sharing options...
BeerBaron Posted March 31, 2014 Share Posted March 31, 2014 yeah it massively depends on the bullet. you also should do some testing at different OAL's to see how it affects grouping. feralshooter and I tested some different OALs with the fronteir CMJs we shoot (both 124gn and 135gn both round nose profile) and found the groups really tightened up as we got shorter. like somewhere between 1.070 and 1.090. I load the 135s as short as 1.080 and the 124s I think feralshooter loads to 1.070 these days. they feed really nicely and shoot really nicely. no fliers, no tumblers and group nicely. Link to comment Share on other sites More sharing options...
TheBoss Posted April 1, 2014 Share Posted April 1, 2014 4.1GR TiteGroup 124 Montana Gold RN 1.085, excellent results. Link to comment Share on other sites More sharing options...
Fireant Posted April 1, 2014 Share Posted April 1, 2014 Ricky, I can fix that for you. Link to comment Share on other sites More sharing options...
RickyH Posted April 1, 2014 Author Share Posted April 1, 2014 Yeh I will probably have you do that Link to comment Share on other sites More sharing options...
Feralshooter Posted April 1, 2014 Share Posted April 1, 2014 As beerbaron said, we tested various OALs for frontier round nose projectiles. While I could load both 124 and 135gn pills out past 1.140", they were not accurate and had some feed problems. I loaded test rounds in 0.010" increments down to 1.050". The shorter the round the more accurate they became. I settled on 1.070" for the 124, and 1.090" for the 135. The reason was that at shorter lengths the ogive would be inside the case mouth and I was concerned the mouth could hang up when going into the chamber. While i load rifles to be just off the lands, i don't think this is the best way with pistols. I am convinced that cz pistols like short OAL. Max length of any load I have settled on is 1.100". I should add that I only shoot 124/5 or 135gn projectiles, either coated lead or frontiers. Link to comment Share on other sites More sharing options...
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