Spring and load questions

Ok, this may be long winded.  I shoot a stock RO with a 9000sc dot.  The load is 4.0 BE 190 gr swc and it seems to function fine.  I had a 11 lb spring in it and replaced it with a 12 lb spring to see if it would still function it functioned fine.  I then loaded some 160 gr swc with 4.3 BE and shot it and no go, I kind of figured that would happen.  Continued to shoot the 190,s and all of the sudden slide won’t lock back after last shot.  Put the 11 lb spring back in and all was fine and it shot the 160’s as well.  I thought great shoot both loads with the 11 lb spring and I’m golden....nope the 160’s started to fail to extract last round as well as the 190’s. A well respected to me high master said lube the damn thing more!  I will try that next range session.  

So, my question is this.  If the keeping it sloppy wet dosent work I’d like to try upping the 160 charge to 4.4 of BE and keep the 190 at 4.0 BE.  11 lb spring.  If I go to a 10 lb spring it would solve all my issues but how do I know I’m not beating the frame to death with either load.  19 lb mainspring btw.  I know I rambled and hop didn’t confuse anyone.

Do buffers do anything to save the frame or am I just being paranoid with the 10 lb spring.  I just don’t want an alibi because I’m afraid to lower the darn spring to 10 lbs.

Gentlemen I thank you

Joe

Mainspring lb?

Chris Miceli wrote:Mainspring lb?

It’s listed in the post. 19 lb

lablover wrote:

Chris Miceli wrote:Mainspring lb?

It’s listed in the post. 19 lb

Guess I didn’t see that. Guide rod stock? What’s your case to shoulder measurement ? Crimp ?

Case to shoulder is .935 crimp is .463. Yes that’s correct...463

Chris Miceli wrote:

lablover wrote:

Chris Miceli wrote:Mainspring lb?

It’s listed in the post. 19 lb

Guess I didn’t see that. Guide rod stock? What’s your case to shoulder measurement ? Crimp ?

Sounds like your load and springs are good. Go to the 10lb spring it’s pretty common. Also springs a lot of the time aren’t the weight they are advertised

I don't think you'd have any issues with a 10lb spring at all.. Honestly probably the most common  spring used on a slide mounted dot gun. you have a heavy dot on the gun so that's going to dampen it a bit

Ass u Me you are using a slide mounted dot

jglenn21 wrote:I don't think you'd have any issues with a 10lb spring at all.. Honestly probably the most common  spring used on a slide mounted dot gun. you have a heavy dot on the gun so that's going to dampen it a bit

Ass u Me you are using a slide mounted dot

Yes, slide mounted

This is all good news so far

Also check your ejector and extractor to make sure they aren’t damaged. Also clean your extractor and extractor channel

Oil the damn thing!

4.4 will be fine with the 160's.

It like to be 'wet'

james r chapman wrote:Oil the damn thing!

4.4 will be fine with the 160's.

It like to be 'wet'

Hehe. That’s the same thing my mentor said!  I oil it but clearly not enough.

A 10 lb. spring will work just fine.  I've been using them for years with no issues using similar loads.  I put a buffer in just to be safe, but it never wears out.

I shoot with an engineer that gunsmiths his own guns and he recommended using a buffer. He saw the one I use and told me it's the one to use. It's clear/white. He said not to use the black ones.