chp5 Posted June 30, 2017 Share Posted June 30, 2017 I'm building a PCC and considering just using a thread protector instead of a comp to keep the barrel shorter. Does a comp on a minor PF PCC actually provide any functionality? Thanks. Link to comment
Maximis228 Posted June 30, 2017 Share Posted June 30, 2017 If you handload with a slower powder, yes. Otherwise You most likely wont notice a real difference. Link to comment
gerritm Posted June 30, 2017 Share Posted June 30, 2017 I am shooting a Kaw linear comp on my JP barrel and it does push back due to the design. I have had several other shoot it as compared to other PCC's and they all have said they can feel the directional push. Now it is not alot, but is there. gerritm Link to comment
chp5 Posted June 30, 2017 Author Share Posted June 30, 2017 (edited) 5 minutes ago, Maximis228 said: If you handload with a slower powder, yes. Otherwise You most likely wont notice a real difference. I handload with Titegroup. Edited June 30, 2017 by chp5 Link to comment
DWFAN Posted June 30, 2017 Share Posted June 30, 2017 Im not sure about a rifle, but put a comp on a pistol at a 45° angle and you'll see what kind of impact it has. Even with a 127pf 115gr bullet and Titegroup load.It wasnt subtle. Link to comment
Hi-Power Jack Posted June 30, 2017 Share Posted June 30, 2017 35 minutes ago, chp5 said: I handload with Titegroup. TG is a fast powder. Slow powders are HS6, WAC, etc. Link to comment
Aircooled6racer Posted June 30, 2017 Share Posted June 30, 2017 Hello: HS-6 at minor loads is very dirty. I use Tite Group and the comp is more of a barrel weight than anything else. It also helps to direct the sound so the timer can pickup the shots. Thanks, Eric Link to comment
longbeard Posted July 1, 2017 Share Posted July 1, 2017 I use Titegroup. No difference I can tell either. Link to comment
Pirate Posted July 1, 2017 Share Posted July 1, 2017 I can tell a bit of difference in going from a JP knockoff comp to a MBX. I load 3.0 of TG under a 147 blue. Link to comment
1911luvr Posted July 1, 2017 Share Posted July 1, 2017 It made a big difference for me in USPSA shoots. With a flash hider I would get a significant gap between double taps due to muzzle rise, and lots of dot bounce. With the comp installed I get only a super tiny dot bounce and zero rise so that both A zone shots are A zone hits. Sent from my iPhone using Tapatalk Link to comment
Tom Freeman Posted July 1, 2017 Share Posted July 1, 2017 Night and day difference for my short barrel Sig MPX. Might not be that much difference on a non-SBR rifle. Link to comment
mscott Posted July 1, 2017 Share Posted July 1, 2017 SBR, yes. The 16" gun I just tested today, no. I tried with comp on and off and really could not tell any difference. Then again I need to work on tuning the buffer system as well. Link to comment
L9X25 Posted July 1, 2017 Share Posted July 1, 2017 Having some difference is expected, even if it is not redirecting gasses beneficially, it is adding weight to the muzzle and reducing the flip slightly as a result. Link to comment
gunther Posted July 8, 2017 Share Posted July 8, 2017 According to shootersnotes.com which uses the powley computer formula, powder gases equal about 8% of the recoil. for a 115gr 9mm bullet going 1152fps from a 8.5in barrel. So i would have to say muzzle brakes on 9mm carbines are just fancy thread protectors! Link to comment
BigBamBoo Posted July 9, 2017 Share Posted July 9, 2017 I know the JP comp on my GMR-13 upper works GREAT at catching lead. I have to use a brass chisel to remove all the lead fouling after a few hundred rounds. As for reducing muzzle rise....can't say. Link to comment
BlackBuzzard Posted July 9, 2017 Share Posted July 9, 2017 Thy're a great conversation starter at the match. Link to comment
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