9mm bullet weight correlates to group size?

647 Views 17 Replies 9 Participants Last post by TrikerNNC, 2 mo ago

TrikerNNC

Discussion Starter · 2 mo ago

did a search and came up blank I'm curious if any 995C owner has tested the 115, 124 and 147 grain bullets to check which is optimum for the barrel twist rate in the carbine to produce the tightest group? also wonder if plated bullets do well? I've fired the Xtreme brand plated slugs in handloads shot from my Marlin .357 with good results but don't have any of those to handload for my 9mm guns.
please post any info on trials you have done shooting your 995C. I was surprised to discover that regardless of the very gritty, sloppy trigger pull my HiPoint carbine shot as well as does with Federal bulk 115gr factory ammo.
thanks, 'the newbie'.

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ajole

· #2 · 2 mo ago

AFAIK, no one has tested the same brand of bulllet in different weights. A lot of us have tested different bullets in the same weights.

People generally choose a weight based on their philosophy about penetration and energy on target, and not on group size. We generally choose the weight we will use, then buy the brand that groups well, and expands right.

So in the end, we rarely test the exact same bullet in different weights.

But I am curious if your idea works.

Reactions: 1

shaner

· #3 · 2 mo ago

Be nice to see and do. Finding 115,124,147 in the same brand and loads would be a challenge in it self. Now I've shot different bullet weights in my C9. And found it gets better groups with the 147gr.

Reactions: 2

TNTRAILERTRASH

· #4 · 2 mo ago

shaner said:
Be nice to see and do. Finding 115,124,147 in And found it gets better groups with the 147gr.

147 can jam in the carbine due to OAL. It's in the manual. Only 147 I've shot was truncated cone. RN could be a problem.

Reactions: 3

Delbert

· #5 · 2 mo ago

You'll find that generally 9mm in 147's are a defense round that is made for pistols because of the bullet's weight out of the case's powder charge, which if used in a long(er) barreled rifle will give problems of either sticking in barrel and causing a blockage or the powder used wasn't designed to be used in a rifle and burns too quick, thus causing it to not go down the pipe too slow.

However, doing your own reloads you might see differences of results by keeping everything under your control, whereas, ammo manufacturers don't have that luxury in doing what a reloader can do to get the best results, which takes time and effort to record in a log book.

I don't know of any ammo manufacturer that makes a plinking/hunting/defense rounds in enough different bullet weights where one can do such a serious test. That's why there's different ammo manufacturers, who specialize in products where they can do specialized testing to bring to the public their best, while keeping the costs at a nominal price for that product.

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TrikerNNC

Discussion Starter · #6 · 2 mo ago

I've loaded Remington 'golden saber' 124 gr handloads for my Marlin Camp 9 and a buddy's Kel Tec with great results but don't have any 147 gr to try. maybe later as time (and availability of product!!) permit.
147 gr at around 1300-1400 fps would have some 'thump'. don't own a chrono so can't gauge

TNTRAILERTRASH

· #7 · 2 mo ago

Delbert said:
You'll find that generally 9mm in 147's are a defense round that is made for pistols because of the bullet's weight out of the case's powder charge, which if used in a long(er) barreled rifle will give problems of either sticking in barrel and causing a blockage or the powder used wasn't designed to be used in a rifle and burns too quick, thus causing it to not go down the pipe too slow.

Get +P. All my brother reloads is 147. When he does 3 gun he runs them through his Tavor9. No problems. He doesn't load them very hot either.

The problem with the 147RN in a Hi-Point is it can hit on the top of the chamber and jam.

Reactions: 3

ajole

· #8 · 2 mo ago

Yeah….there’s NO way 147’s are getting stuck in a carbine barrel due to being too slow.

if they did….how would 45 ACP work? It’s generally MUCH slower.

Reactions: 1

moona11

· #9 · 2 mo ago

Delbert said:
You'll find that generally 9mm in 147's are a defense round that is made for pistols because of the bullet's weight out of the case's powder charge, which if used in a long(er) barreled rifle will give problems of either sticking in barrel and causing a blockage or the powder used wasn't designed to be used in a rifle and burns too quick, thus causing it to not go down the pipe too slow.

However, doing your own reloads you might see differences of results by keeping everything under your control, whereas, ammo manufacturers don't have that luxury in doing what a reloader can do to get the best results, which takes time and effort to record in a log book.

I don't know of any ammo manufacturer that makes a plinking/hunting/defense rounds in enough different bullet weights where one can do such a serious test. That's why there's different ammo manufacturers, who specialize in products where they can do specialized testing to bring to the public their best, while keeping the costs at a nominal price for that product.

WTF are you smoking?

Reactions: 3

RACHGIER

· #10 · 2 mo ago

moona11 said:
WTF are you smoking?

He borrowed a McRib from TNT with his brother's +P ammo that he doesn't load hot.

Reactions: 3

TNTRAILERTRASH

· #11 · 2 mo ago

RACHGIER said:
He borrowed a McRib from TNT with his brother's +P ammo that he doesn't load hot.

I never said my brother loaded +P Get new glasses or lay off the pay-O--tee Homer.............

RACHGIER

· #12 · 2 mo ago

TNTRAILERTRASH said:
I never said my brother loaded +P Get new glasses or lay off the pay-O--tee Homer.............

No, you said buy +p and your brother downloads for 3-gun.

Get off my dick and go get a McRib.

Peyote and psilocybin are awesome.

Reactions: 1

Twobits

· #13 · 2 mo ago

RACHGIER said:
No, you said buy +p and your brother downloads for 3-gun.

Get off my dick and go get a McRib.

Peyote and psilocybin are awesome.

His brother reloads for 3 gun not downloads and keep it clean.

RACHGIER

· #14 · 2 mo ago

Twobits said:
His brother reloads for 3 gun not downloads and keep it clean.

Oh no! What are you gonna do, report me for being mean? I might need a safe space to cry about it, is there room in yours?

moona11

· #15 · 2 mo ago

RACHGIER said:
Oh no! What are you gonna do, report me for being mean? I might need a safe space to cry about it, is there room in yours?

There is a few individuals that would benefit from a psychedelic.

Reactions: 1

RACHGIER

· #16 · 2 mo ago

moona11 said:
There is a few individuals that would benefit from a psychedelic.

They're legal in Colorado.

Reactions: 1

Think1st

· #17 · 2 mo ago

moona11 said:
There is a few individuals that would benefit from a psychedelic.

I heard that micro-dosing LSD can enhance cognitive function and concentration like the NZT pill in that movie Limitless. Still waiting for the FDA's approval. Since the FDA is funded by pharmaceutical company baksheesh, maybe Elon Musk can make that happen.

Reactions: 1

TrikerNNC

Discussion Starter · #18 · 2 mo ago

I have factory load FMJ 124 gr. SAR USA stated 'NATO' loads which do seem 'snappy' shot in my S&W pistol but I don't own a chrono so no figures on velocity out of my carbine and can't judge by recoil - the report seems a bit snappy though but using foam ear plugs difficult to say. Plus I've shot just one magazine of on a steel plate to function check. an online review of this ammo said 1200 fps over a chrono from a pistol. I have 2 other brands of fmj 124gr. also not head stamp 'NATO' but don't have any 147 gr loads, do have a bag of Rem Golden Saber I bought with intent to test for possible +P loading to use as a doe day tag filler
I've basically been just been breaking in my carbine after sight-in but impressed with the good grouping so far eyeing towards use in informal shooting matches hence the question posed to more experienced carbine owners.
I've also searched for tips on tuning the trigger which IMO can benefit very much from some attention to. would appreciate any guidance or links to posts concerning this.

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