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calibers
In guns, particularly firearms, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel bore - regardless of how or where the bore is measured and whether the finished bore matches that specification. It is measured in inches or in millimeters. In the United States it is expressed in hundredths of an inch; in Great Britain in thousandths; in Europe and elsewhere in millimeters. For example, a "45 caliber" firearm has a barrel diameter of roughly 0.45 inches (11 mm). Barrel diameters can also be expressed using metric dimensions. For example, a "9 mm pistol" has a barrel diameter of about 9 millimeters. Due to the fact that metric and US customary units do not convert evenly at this scale, metric conversions of caliber measured in decimal inches are typically approximations of the precise specifications in non-metric units, and vice versa.
In a rifled barrel, the distance is measured between opposing lands or between opposing grooves; groove measurements are common in cartridge designations originating in the United States, while land measurements are more common elsewhere in the world. Measurements "across the grooves" are used for maximum precision because rifling and the specific caliber so-measured is the result of final machining process which cuts grooves into the rough bore, leaving the "lands" behind.
Good performance requires a concentric, straight bore that accurately centers the projectile within the barrel, in preference to a "tight" fit which can be achieved even with off-center, crooked bores that cause excessive friction, fouling and an out-of-balance, wobbling projectile in flight.
While modern firearms are generally referred to by the name of the cartridge the gun is chambered for, they are still categorized together based on bore diameter. For example, a firearm might be described as a "30 caliber rifle", which could accommodate any of a wide range of cartridges using a roughly 0.30 inches (7.6 mm) projectile; or as a "22 rimfire", referring to any rimfire firearms firing cartridges with a 22 caliber projectile. However, there can be significant differences in nominal bullet and bore dimensions, and all cartridges so "categorized" are not automatically identical in actual caliber.
For example, 303 British firearms and projectiles are often "categorized" as ".30-caliber" alongside several dozen U.S. "30-caliber" cartridges despite using bullets of .310–.312″ diameter while all U.S "30-caliber" centerfire rifle cartridges use a common, standard .308″ bullet outside diameter. Using bullets larger than design specifications causes excessive pressures, while undersize bullets cause low pressures, insufficient muzzle velocities and fouling that will eventually lead to excessive pressures.
Calibers fall into four general categories by size:
Small-bore refers to calibers with a diameter of .32 inch or smaller
medium-bore refers to calibers with a diameter between .33 inch up to .39 inch
large-bore refers to calibers with a diameter of .40 inch or larger
the miniature-bore historically refers to calibers with a diameter of .22 inch or smallerThere is much variance in the use of the term "small-bore", which over the years has changed considerably, with anything under .577 caliber considered "small-bore" prior to the mid-19th century.
See pictures for what I have. Green price stickers are for full boxes, red stickers are partials with the quantity written on them. I think they are all identifiable in the pictures, but feel free to ask questions about any you are interested in.
Offers welcome, bulk buys encouraged. Trades...
I was not getting notifications for my last thread to i am starting new. If you responded to my last thread and i didn’t not respond I do apologize please reach out to me via DM and I will be sure to respond.
Brass
264 WIN MAG Fired Brass 60 Pieces $60
7mm Weatherby Mag Fired Brass 20 Pieces...
I'm thinning the amount of brass I've collected over the years. What brass I have is assorted head stamps, most have been resized and cleaned.
Asking .05 cents per round.
Local pickup only - unless you want to pay for all shipping fees.
Calibers are 30-06. 270 Winchester. 7mm Magnum. Please...
Reloading dies, as shown: $20 each or 3 for $50 EXCLUDING 460 S&W CARBIDE ROLL CRIMP DIES @ $30.
Calibers listed (as shown):
25-06
220 Swift
257 Weatherby
350 Remington
416 Remington
7mm Remington magnum
30-06 Springfield
I'll ship if 3 or more are bought, but won't ship single die sets. Thanks.
Selling off some ammo. I am not looking to separate the ammo, so it's all or nothing. A possible trade for something interesting may be possible.. Auto OTF knives, Revolver for plinking,
The following is including: All factory ammo.
.22 – 2970 rounds
.22 bird shot - 15 rounds
9mm – 482...
260 Rem
125 gr Trophy Grade Partition 6 boxes $40 per box
6.5 Grendel
120 gr Ballistic Tip 9 boxes $30 per box
6.5 CM
140 gr Ballistic Tip 5 boxes $35 per box
6.5 PRC
140 gr Trophy Grade Accubond 5 boxes $75 per box
140 gr Ballistic Tip Blems 2 boxes $55 per box
142 gr Trophy Grade...
We went to the range and she fired both the 4.5" and 5.25" XDM10's, now Shes gathering my 357 Sig calibered guns and the range ammo to go with it, She had me loading magazines. She describes the 10 MM as strong and accurate and she just rediscovered that we have a G-20 that she has not shot...
Looking to thin some of my ammo stock down and get some cash to fund a new project. Calibers and prices below…
- 40 rds of 7.5x55 Swiss- privi and surplus will bundle- for SOLD
-500 rounds of tulammo steel cased 7.62x39- $150 SOLD
-260 rounds of Korean surplus .30 carbine 110 gr FMJ- $70 SOLD...
I enjoy the various discussions and opinions concerning handguns, holsters, etc. , but I have a sense that some of the responses are more wishful thinking than actual real world experience. I have no idea how many of you have actually had to engage an assailant or an enemy combatant, but I think...
I have a large variety of ammo I'm looking to get rid of, most of it is new in box.
Selling as the lot for $500 obo to comply with forum rules and modify original post.
Calibers include:
9mm
.45 ACP
.22LR
12GA
.50BMG
.30-06
5.56/.223
Need all this gone to make space so text me for the quickest...
91-.257 Sierra hp/75gr./50- .257 hornady 75 gr hp $25 for both boxes.36- 130gr. Speer .277 bullets/30-150gr hornady .277 bullets $15 for both boxes. 2 boxes Speer 7mm spitzers 15 a box or buy both for $25. 50- 145 gr . 7mm of unknown mfg. $5 .1 box Speer hot cor 160 gr. 7mm New $40 box.1 box...
I was going through a relatives shooting supplies & ammo stores, and came across this box of odds and ends. All factory cartridges, except maybe one.
380 Auto (20 rounds)
357 Mag (7 rounds)
30 Mauser (9 rounds)
357 SIG (20 rounds)
More 357 SIG (27 rounds, but these may possibly be reloads. I...
Many brands & varieties. Will ship on your dime if needed. List will be updated as things sell.
Need more info, ask please.
Send a PM if you want anything.
Pistol
47 Speer 38 160gr JSP SWC $8
36 Speer 44 240gr JSP SWC $6
500 Redline 45 250gr RNFP $60 SOLD
500 Hunters Supply 45 225gr RNFP $60...
Some calibers aren’t as fun to reload as others. Some are quite enjoyable.
I’m likely going to eliminate 38/357 or severely reduce my need to reload and or have that much of that caliber and I’m interested in adding another caliber in its absence.
So….
What calibers do you enjoy reloading...