jrkfantom said:
been using berry's plated and have to push bullets pretty hot to get my action to cycle correctly in my sw9ve ... accuracy has suffered a bit.
I've got the bullets loaded over 5.1 grs of Win 231, berry's plated 115 grain bullets.
I think there are two things to consider:
1. It's been my experience that I need to push the lighter 115 gr bullets near max load data to reliably cycle the slide of some semi-autos with stiffer recoil springs and obtain optimal accuracy.
FYI, my 9mm reference load uses Winchester 115 gr FMJ with 4.8 gr of W231/HP-38 at 1.135" OAL and this load has reliably cycled the slides of various pistols I have shot them out of including G22/G23 and even G27 with stiffer dual-recoil spring assembly using 40-9 conversion barrels - -
http://www.thehighroad.org/showthread.php?p=7266869#post7266869
2. It's been my experience that when I start pushing plated bullets beyond high range jacketed load data, I begin to see deterioration of accuracy. I have addressed this issue by using heavier 124 gr plated bullets and mid-to-high range load data that provide reliable slide cycling and accuracy.
With 5.1 gr of W231, you are over-driving the 115 gr plated bullet when
Berry's MFG recommends we use start-to-mid range jacketed load data with their plated bullets. You could try longer OAL (1.135") and no tighter than .377" taper crimp to reduce high pressure gas leakage.
Here's
1999 Winchester load data for W231 in comparison with current Hodgdon load data:
Current Hodgdon load data
115 gr Lead CN W231/HP-38 OAL 1.100" Start 4.3 gr (1079 fps) 28,400 CUP - Max 4.8 gr (1135 fps) 32,000 CUP
115 gr Speer GDHP W231/HP-38 OAL 1.125" Start 4.7 gr (1075 fps) 25,300 CUP - Max 5.1 gr (1167 fps) 28,100 CUP
125 gr Sierra FMJ W231/HP-38 OAL 1.090" Start 4.4 gr (1009 fps) 24,600 CUP - Max 4.8 gr (1088 fps) 28,800 CUP
I have used montana golds with great accuracy. I've also looked at x-treme plated, those look ok, and also the new berry's hollow bases with thicker plating have caught my eye. Does anyone have experience with the HB berry's or xtreme and could tell me which company is more accurate?
If you are using FMJ bullets with good results, that's because the lead base expands to better seal with the barrel for more consistent chamber pressures (see link for hollow base FMJ below).
It is for this reason why Berry's hollow base plated bullets outperform solid based plated bullets and even lead base FMJ bullets. In addition, hollow base bullet construction increases the bearing surface of the bullet base thereby seating the bullet base deeper in the case neck and provides more bearing surface to ride the rifling. IMO, these factors produce more consistent chamber pressures and stabilize the bullet in flight better for greater accuracy. Also, 115/124 gr HBRN "Thick Plated" (TP) bullets have thicker plating that
can be driven to 1450 fps so you can use up to max jacketed load data.
I have used Berry's, HSM, PowerBond, Rainier, Speer TMJ, X-Treme and other regional brand plated bullets and would recommend Berry's HBRN-TP for optimal accuracy. If you are looking for economical range target loads, any 124 gr plated bullets with mid-to-high range load data should work over 115 gr plated bullets although IMO, X-Treme/PowerBond/Speer TMJ bullets seem to have thicker plating than others with the exception of Berry's TP bullets.
SO long as the the price stays under MG, i guess it doesn't matter.
Berry's 115 gr HBRN-TP - $84/1000 + free shipping
Berry's 124 gr HBRN-TP - $88/1000 + free shipping
X-Treme 115 gr RN - $79/1000 + free shipping
X-Treme 124 gr RN - $83/1000 + free shipping
How about
115 gr "Hollow Base" FMJ bullets? $168/2000 ($84/1000) + free shipping